The Fire and the Wind: A New Paradigm for Understanding the Rapid Spread of Islam

The Historian’s Dilemma: Beyond Sword or Sermon

For years, as a historian, I felt trapped by a question that seemed to offer only two paths, both of them intellectual dead ends: Why did Islam spread so rapidly in the 7th and 8th centuries? The conventional answers always forced a binary choice.

Was it the story of the “sword”—a narrative of violent conquest and forced conversion that painted the early caliphate as an unstoppable military machine?.¹

Or was it the story of the “sermon”—a peaceful blossoming of a spiritually resonant message that won hearts and minds through its sheer persuasive power?.²

Both explanations felt incomplete, like trying to describe a hurricane by only mentioning either the wind or the rain.

The “sword” narrative, often rooted in later polemics, couldn’t account for the fact that in many conquered lands, Muslim populations remained a small minority for centuries, or that forced conversion was rare and often discouraged by rulers who stood to lose tax revenue.¹

Conversely, the “sermon” narrative alone felt too passive to explain the breathtaking speed of the territorial expansion—an empire stretching from Spain to India in little more than a century, a feat that historian James Buchan noted was “matched only by those of Alexander the Great, and…

more lasting”.⁵

The challenge is compounded by the very nature of our historical sources.

The most detailed accounts of this period were often written 100 to 150 years after the events they describe, shaped by the political and theological agendas of later dynasties like the Abbasids.⁷

This historiographical problem calls for a more sophisticated model, one that can accommodate fragmentary evidence, the valuable perspectives of non-Muslim contemporaries, and the ongoing scholarly debates between figures like Fred Donner, who views the conquests as a well-planned state policy, and Patricia Crone, who challenged traditional views of the economic context in which Islam arose.¹⁰

My own breakthrough came when I abandoned the binary choice and began to see the phenomenon not as a single cause but as a dynamic system.

The rapid spread of Islam was less like a simple choice and more like a wildfire.

A wildfire’s spread is never monocausal.

It requires three distinct but interacting elements: a powerful Spark (a potent ideology), a vast landscape of Dry Tinder (a geopolitical environment ripe for change), and strong Winds (multiple, mutually reinforcing vectors of transmission).

This paradigm allows us to move beyond a simple list of reasons and see the spread of Islam as it was: a systemic event where military success validated religious belief, which in turn motivated soldiers, whose conquests generated the wealth to fund a state that made further expansion possible.

Part I: The Spark – A Revolutionary Message in a Restless World

The initial spark of this historical wildfire was a message that was both theologically revolutionary and socially transformative.

It landed in a 7th-century world yearning for spiritual and societal renewal.¹⁴

Radical Monotheism and Prophetic Continuity

At its core, the message of early Islam was a radical and uncompromising monotheism (Tawhid).

It called for absolute submission to a single, all-powerful God, a concept that stood in stark contrast to the polytheistic traditions of pre-Islamic Arabia.¹⁵

However, this message was not presented as an entirely new religion.

Instead, it was framed as the restoration and final, uncorrupted expression of the primordial faith of Abraham, a figure revered by Jews and Christians alike.¹⁴

The Qur’an presents itself as confirming the original revelations of the Torah and the Gospel, positioning Muhammad not as the founder of a new faith but as the final prophet in a long line that included Moses and Jesus.¹⁸

This framing was a crucial element of its appeal, allowing it to connect with, rather than simply antagonize, existing monotheistic communities.

An Ideology of Social Transformation

Beyond its theology, Islam offered a powerful program of social reform that directly addressed the inequities of the time.

The message challenged the very foundation of Arabian society—the primacy of blood and kinship—by introducing the concept of the ummah, a unified community based on faith rather than tribal affiliation.¹⁶

This was not merely a spiritual ideal; it was a political revolution.

By replacing feuding tribal loyalties with a shared identity, the early Islamic state was able to forge a cohesive political and military force that was previously unimaginable in the fragmented peninsula.⁴

This new social contract included sweeping changes that appealed to the disenfranchised.

It condemned the exploitation of the poor, institutionalized charity through the zakat (obligatory alms), and abolished usury.²¹

It significantly improved the status of women, granting them rights to inheritance, education, and divorce, and transforming marriage from a matter of status to a legal contract where the dowry became the wife’s personal property.²¹

For slaves, while the institution was not abolished, the Qur’an presumed a person’s natural state was freedom and strongly encouraged manumission, making it a pious act.²¹

This message of social justice and equality was profoundly attractive in a world defined by rigid social hierarchies.²⁶

A Message for Diverse Audiences

The genius of this “spark” was its ability to resonate with vastly different audiences:

• For Polytheistic Societies: For tribal populations, Islam offered a “larger framework for political and economic integration, a more stable state, and a more imaginative” worldview.²⁸ The shocking military success of the Muslims created a crisis of faith for those whose tribal gods had failed to protect them, a vacuum that Islam’s universalist message of a single, all-powerful God could readily fill.²³
• For Christians and Jews: Islam’s strict monotheism and its reverence for Abrahamic prophets appealed to groups who were alienated by the complex Christological doctrines of the Byzantine Empire, such as the Trinity.¹⁹ Some early Christian sources even interpreted the rise of the “Ishmaelites” as a fulfillment of God’s biblical promise to Abraham, viewing Muhammad’s mission as teaching the Arabs to know the God of their shared patriarch.³⁰
• For Spiritual Seekers: The story of Salman the Persian provides a powerful human narrative for this appeal. A Zoroastrian who journeyed through Christianity in search of truth, Salman eventually found his answer in Islam after meeting Muhammad in Medina. His journey exemplifies conversion as an intellectual and spiritual quest, and his subsequent integration into the community—famously contributing the Persian idea of digging a trench to defend Medina—shows how converts became central to the new society.³¹

Part II: The Dry Tinder – A World Primed for Change

A spark, no matter how bright, cannot start a fire without fuel.

In the 7th century, the entire Near East was a landscape of dry tinder, exhausted by war and primed for a monumental shift.

The Exhaustion of Superpowers

The critical context for the rise of Islam was the Byzantine-Sasanian War of 602–628.

This was not a limited border conflict but a cataclysmic, decades-long struggle that stretched from Constantinople to Ctesiphon.

By its end, both ancient empires had “exhausted their human and material resources”.³⁴

This mutual devastation created a profound power vacuum across the Levant, Egypt, and Mesopotamia—the very regions where the first Arab armies would achieve their most stunning victories.⁴

The Byzantine Empire’s Internal Fractures

The Byzantine Empire, though ultimately victorious in the war, was deeply wounded and internally divided.

• Religious Schism: The state-enforced Chalcedonian Orthodoxy led to the active persecution of other Christian communities, most notably the Miaphysite Copts in Egypt and the Nestorians in Syria.³⁰ For these groups, Byzantine rule was synonymous with religious oppression. Consequently, when the Muslim armies arrived, many of these communities were ambivalent or even welcoming, viewing the conquerors not as an existential threat but as a potential liberation from their Orthodox overlords.¹
• Economic Ruin: Decades of total war had shattered the Byzantine economy. The state resorted to debasing its coinage, levying crushing taxes, and had lost control of its wealthiest provinces for long periods, severely hampering its ability to pay for and field effective armies.³⁴

The Sasanian Empire’s Collapse

The Sasanian Persian Empire fared even worse.

Its defeat triggered a complete political breakdown.

• Political Instability: The execution of Khosrow II in 628 plunged the empire into a chaotic civil war, with at least ten different claimants to the throne in just four years.¹⁵ This internal turmoil paralyzed the central government, leaving provincial governors to fend for themselves against the advancing Arab forces.
• Social Discontent: The rigid, caste-like social structure, legitimized by the state religion of Zoroastrianism, offered little room for social mobility and may have contributed to a lack of popular investment in the survival of the ruling dynasty.⁴⁰

The Welcome Mat of Discontent

The combination of high imperial taxes, religious persecution, and political chaos meant that many populations across the Near East were profoundly disaffected.

The arrival of the Muslim armies was often seen as a mere change of masters, and in some cases, a preferable one.

The story of the Coptic Patriarch Benjamin I of Alexandria is a telling example.

Having been driven into exile by the persecuting Byzantines, he was officially invited to return and resume his duties by the Muslim conqueror ‘Amr ibn al-‘As.⁴¹

For a Coptic Christian in Egypt, the choice was not between freedom and subjugation, but between subjugation with persecution under a fellow Christian emperor and subjugation with tolerance under a new Muslim caliph.

This explains the “feeble resistance” noted in many regions and why some Christian sources framed the conquest as God’s judgment on the “corrupt faith” of their Byzantine oppressors.³⁰

Part III: The Winds of Change – The Four Vectors of Expansion

With a potent ideological spark and a landscape of dry tinder, all that was needed were the winds to spread the flames.

The expansion of Islam was driven by four distinct but interconnected vectors, ranging from a violent gale to a gentle breeze.

1. The Gale Force: Military Conquest (632-750 CE)

The initial and most dramatic vector was military conquest.

It was the “gale force” that shattered the old imperial structures and established a vast political domain in a remarkably short period.²⁸

This success was not accidental but was the result of superior organization, strategy, and motivation.

The Rashidun army was a formidable force, characterized by high discipline, strategic prowess, and unparalleled mobility.⁴⁴

Relying on camels for long-distance travel and light cavalry for battlefield maneuverability, Arab commanders consistently outflanked and defeated larger, slower-moving imperial armies.⁴⁴

The military genius of generals like Khalid ibn al-Walid, nicknamed the “Sword of God,” was crucial.

His legendary march across the waterless Syrian desert to outmaneuver the Byzantines before the Battle of Ajnadayn is a prime example of the innovative and audacious tactics employed.⁶

This military machine was fueled by the unifying power of faith.

The soldiers were motivated by the belief that they were fighting in God’s cause, a conviction that provided a level of morale and cohesion that the war-weary and often mercenary armies of the old empires could not match.¹³

The sheer speed and scale of this expansion, detailed in the timeline below, demonstrates the overwhelming effectiveness of this military vector.

Table 1: Chronological Overview of the Early Islamic Expansion (632-750 CE)

Date Range	Region: The Levant	Region: Persia/Iraq	Region: Egypt & North Africa	Region: Iberia & Beyond
632-634 CE	Ridda Wars consolidation. Initial raids. Battle of Ajnadayn (634).	Battle of Chains (633). Conquest of Al-Hirah (633).	Initial planning.	–
634-644 CE	Battle of Yarmouk (636). Conquest of Damascus (635), Jerusalem (637/8).	Battle of al-Qadisiyyah (636). Fall of Ctesiphon (637). Battle of Nahavand (642).	Conquest of Egypt begins (639). Fall of Alexandria (642).	–
644-661 CE	Consolidation under Mu’awiya. Naval raids on Cyprus.	Final collapse of Sasanian resistance. Yazdegerd III killed (651).	First invasion of Maghreb (647). Tripoli captured.	–
661-750 CE	Umayyad capital in Damascus. Sieges of Constantinople.	Raids into Transoxiana.	Kairouan founded (670). Conquest of Maghreb completed (709).	Invasion of Hispania (711). Battle of Tours (732).

¹⁵

2. The Trade Winds: Commerce, Cities, and Cultural Exchange

Following in the wake of the armies were the merchants.

The establishment of a vast, politically unified caliphate created one of the largest free-trade zones the world had ever seen, stretching from the Atlantic to the Indus.⁴⁹

The elimination of the old, warring imperial frontiers, coupled with the security of trade routes and the introduction of a common currency (the dinar) and language of commerce (Arabic), gave Muslim merchants a powerful advantage.⁴⁹

Islam spread along these commercial networks in a process that mirrors modern “diffusion of innovations” theory.⁵²

Merchants acted as the key nodes in a vast network, and the trade routes were the connections between them.

For a local trader in West Africa or the islands of Southeast Asia, converting to Islam meant gaining access to this vast, trusted network, which lowered transaction costs and provided connections to new markets.⁵⁴

This created a powerful economic incentive for conversion, explaining how Islam spread peacefully to regions far beyond the reach of the early caliphate’s armies.⁵⁴

3. The Prevailing Climate: Pragmatic Governance and Administration

The long-term success of the expansion depended on the ability to govern the vast conquered territories effectively.

The “prevailing climate” of early Islamic rule was one of remarkable pragmatism, designed for stability rather than forced assimilation.

The cornerstone of this policy was the dhimmi system, which granted “protected” status to non-Muslim “People of the Book” (primarily Christians and Jews, but later extended to others).¹⁵

In exchange for loyalty and the payment of a poll tax known as the

jizya, these communities were granted security of life and property, freedom to practice their religion, and a significant degree of autonomy to govern their own internal affairs.⁵⁷

The jizya was more than just a tax; it was a fundamental tool of statecraft.⁵⁹

It provided the financial bedrock of the early empire, funding the army and the administration.

This economic reality is crucial for understanding the pace of conversion: since a non-Muslim’s conversion meant the loss of

jizya revenue, early rulers, particularly during the Umayyad caliphate, often had a financial disincentive to encourage mass conversion.³

The principles of this pragmatic governance are best exemplified in the “Pact of Umar,” the treaty drafted upon the surrender of Jerusalem.

While modern historians debate whether the surviving text dates directly to Caliph Umar’s time, its core principles became the model for Islamic governance.⁶²

The pact guaranteed the safety of the city’s Christian inhabitants, their property, and their churches, promising they would not be forcibly converted or have their places of worship destroyed.⁶⁴

This policy of calculated coexistence was essential for maintaining stability in a vast and diverse empire.

4. The Gentle Breeze: Missionaries, Mystics, and Migration

The final vector of expansion was a slower, more organic process of cultural and religious diffusion.

This “gentle breeze” operated over centuries, gradually transforming the conquered societies from within.

While the early caliphate did not have a centrally organized missionary program, the spread of Islamic knowledge was facilitated by the travels of individual scholars, pilgrims on the annual Hajj to Mecca, and merchants who carried their faith along with their goods.⁴

Later, mystical Sufi orders played an integral role, spreading a more devotional and adaptable form of Islam that often blended with local traditions, making it particularly successful in Central Asia, India, and sub-Saharan Africa.²⁸

Crucially, the establishment of Arab garrison cities (amsar) like Basra and Kufa in Iraq, and Fustat in Egypt, created permanent hubs of Muslim culture and influence in the heart of conquered lands.⁴

Over generations, daily interaction, intermarriage, and the social and economic advantages associated with adopting the religion of the ruling class led to a gradual, voluntary process of conversion and Arabization.¹

This explains the historical paradox of the Islamic expansion: the political conquest was explosively fast, but the religious conversion of the majority of the population was a slow burn that took centuries.

Part IV: The New Ecosystem – Forging an Islamic Civilization

The interaction of these forces did not just expand a kingdom; it created a new global ecosystem.

The true nature of this transformation is best understood by moving from the grand scale of armies and empires to the intimate scale of human lives.

The journey of Salman the Persian illustrates the profound spiritual pull of the new faith.

His life was a quest that took him from the fire temples of Zoroastrianism to the monasteries of Christian Syria, seeking a truth he felt was yet to be fully revealed.

In Islam, he found the culmination of his search, a direct and unmediated relationship with the one God.³¹

His story is a powerful testament to conversion as an act of intellectual and spiritual fulfillment.

The experience of Patriarch Benjamin I of Alexandria reveals the complex political realities of the conquests.

For him and his Coptic flock, the arrival of the Muslims was a liberation from the persecution they had suffered at the hands of their Byzantine co-religionists.

The new rulers restored his authority and guaranteed his community’s freedom of worship, demonstrating that for many non-Muslims, the change of rule was a pragmatic and often beneficial choice.⁴¹

Finally, the story of Caliph Umar’s entry into Jerusalem became the foundational narrative of just and tolerant Islamic rule.

Arriving in simple robes, taking turns walking while his servant rode their shared mount, he presented an image of humility that stunned the city’s leaders.⁶⁴

His refusal to pray inside the Church of the Holy Sepulchre, lest future Muslims use it as a pretext to convert it into a mosque, was an act of profound foresight and respect.⁶

The pact he established, guaranteeing the rights of Christians and allowing Jews to return to the city from which they had been banned by the Romans, set the standard for a multi-religious society under Muslim governance.⁷⁰

The result of this vast expansion was the creation of a new, cosmopolitan civilization.

By conquering and connecting the previously separated Hellenistic world of the Byzantines and the Perso-Indian world of the Sasanians, the Islamic caliphate acted as a powerful network catalyst.

This new, unified space facilitated an unprecedented flow of ideas, goods, and people, sparking the Islamic Golden Age—a period of extraordinary scientific, philosophical, and cultural innovation built on the fusion of Greek, Persian, Indian, and Arab knowledge.²⁸

Conclusion: A Multi-Causal Phenomenon

The astonishingly rapid spread of Islam cannot be explained by a single cause.

The simplistic binary of “sword or sermon” dissolves under the weight of historical evidence.

A more powerful and accurate explanation lies in the paradigm of a historical wildfire.

It was a rare confluence of events where a potent Spark—a revolutionary religious and social message of radical monotheism, social justice, and communal unity—landed in a vast expanse of Dry Tinder—a world of exhausted, internally fractured, and deeply disaffected empires.

This nascent fire was then fanned and driven across three continents by powerful and multi-directional Winds: the gale force of a highly motivated and brilliantly led military; the trade winds of a newly unified commercial network; the prevailing climate of a pragmatic and surprisingly tolerant system of governance; and the gentle breeze of organic cultural diffusion.

Each element amplified the others in a powerful feedback loop.

Military conquest provided the political space and the financial resources for the state to thrive.

Stable governance made that space habitable for diverse populations.

Thriving trade networks spread the new faith’s influence far beyond the battlefield, while its core message offered spiritual and social solutions that resonated with millions.

To understand this pivotal moment in human history is to move beyond simple causes and appreciate the complex, dynamic, and deeply human story of a civilizational transformation.

Works cited

1. Early Islamic Expansion- Colonialism or Conquest? | by … – Medium, accessed on August 5, 2025, https://medium.com/@howtomuslimnow/early-islamic-expansion-colonialism-or-conquest-bc78c5587044
2. Was Islam Spread by the Sword? | Dr. Safiyyah Ally – YouTube, accessed on August 5, 2025, https://www.youtube.com/watch?v=DP–Nq-cFQ0
3. How did the Christian Middle East become predominantly Muslim? | University of Oxford, accessed on August 5, 2025, https://www.ox.ac.uk/news/arts-blog/how-did-christian-middle-east-become-predominantly-muslim
4. The rise of Islamic empires and states (article) | Khan Academy, accessed on August 5, 2025, https://www.khanacademy.org/humanities/world-history/medieval-times/spread-of-islam/a/the-rise-of-islamic-empires-and-states
5. en.wikipedia.org, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Early_Muslim_conquests#:~:text=According%20to%20historian%20James%20Buchan,at%20Sind)%20in%20the%20east%3B
6. Early Muslim conquests – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Early_Muslim_conquests
7. Historiography of early Islam – Alsadiqin Institute, accessed on August 5, 2025, https://www.alsadiqin.org/en/index.php/Historiography_of_early_Islam
8. Classical Islamic Historiography in Early Moslem and Orientalist Historiographical Works, accessed on August 5, 2025, https://digilib.uin-suka.ac.id/57291/1/Classical%20Islamic%20Historiography%20in%20Early%20Moslem%20and%20Orientalist%20Historiographical%20Works.pdf
9. Embedding Conquest: Naturalising Muslim Rule in the Early Islamic Empire (600-1000) – Universiteit Leiden, accessed on August 5, 2025, https://www.universiteitleiden.nl/en/research/research-projects/humanities/embedding-conquest
10. Early Islamic Historiography – College of Liberal Arts – Purdue …, accessed on August 5, 2025, https://www.cla.purdue.edu/academic/history/organizations/hgsa/documents/readinglists/MinorField-DavidSchlosser.pdf
11. Fred Donner – Coproduced Religions, accessed on August 5, 2025, https://coproduced-religions.org/community/fred-donner
12. Meccan Trade and the Rise of Islam – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Meccan_Trade_and_the_Rise_of_Islam
13. Fred Donner. The Early Islamic Conquests – Internet History …, accessed on August 5, 2025, https://origin.web.fordham.edu/halsall/med/donner.asp
14. History of Islam – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/History_of_Islam
15. Early Islamic conquests | Islamic World Class Notes | Fiveable …, accessed on August 5, 2025, https://library.fiveable.me/the-islamic-world/unit-1/early-islamic-conquests/study-guide/mjA8gsAxWq8lgT0y
16. READ: Islam (article) | Khan Academy, accessed on August 5, 2025, https://www.khanacademy.org/humanities/whp-origins/era-3-cities-societies-and-empires-6000-bce-to-700-c-e/35-development-of-belief-systems-betaa/a/read-islam-beta
17. The Historical, Theological and Spiritual Commonality between the Monotheistic Religions – Lirias, accessed on August 5, 2025, https://lirias.kuleuven.be/retrieve/a79c3988-c9df-4af0-9e3f-c4219c37b98d
18. Let’s Talk About the “Islamic Dilemma” | by Sa’īd Abdul Latif (Hilarion Heagy) | Medium, accessed on August 5, 2025, https://medium.com/@SaidAbdulLatif/lets-talk-about-the-islamic-dilemma-9d18a6fe4706
19. Early World Civilizations Unit 12 – Rise and Spread of Christianity and Islam – Fiveable, accessed on August 5, 2025, https://library.fiveable.me/early-world-civilizations/unit-12
20. Early Muslims and the Bible | Bible Interp – Bible Interpretation, accessed on August 5, 2025, https://bibleinterp.arizona.edu/articles/early-muslims-and-bible
21. Early social changes under Islam – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Early_social_changes_under_Islam
22. Social Justice, Human Rights, and Equality: An Islamic Perspective (Chapter 6), accessed on August 5, 2025, https://www.cambridge.org/core/books/contemporary-islamic-perspectives-in-public-health/social-justice-human-rights-and-equality-an-islamic-perspective/706C4D4323F4B4B7CE6DE45D09CB5966
23. What did Islam offer converts that allowed it to spread so easily? – Quora, accessed on August 5, 2025, https://www.quora.com/What-did-Islam-offer-converts-that-allowed-it-to-spread-so-easily
24. Justice in Islam – Islamic Perspective of Justice and Equity – Dawntravels Blogs -, accessed on August 5, 2025, https://blog.dawntravels.com/justice-in-islam/
25. Unpacking the Paradox: Islam, Social Justice, and the Quest for Equality | Countercurrents, accessed on August 5, 2025, https://countercurrents.org/2025/01/unpacking-the-paradox-islam-social-justice-and-the-quest-for-equality/
26. Islam’s Teachings On Social Justice And Equality – Mahim Dargah, accessed on August 5, 2025, https://mahimdargah.org/islams-teachings-on-social-justice-and-equality/
27. Justice and Equality in Islam (Islam 6.1) – Abu Khadeejah, accessed on August 5, 2025, https://abukhadeejah.com/justice-and-equality-in-islam-6-1/
28. Spread of Islam – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Spread_of_Islam
29. Stanford fellow delves into archival materials that shed new light on the early days of Islam, accessed on August 5, 2025, https://news.stanford.edu/stories/2015/03/early-days-islam-030315
30. Christian Views of Islam – St Andrews Encyclopaedia of Theology, accessed on August 5, 2025, https://www.saet.ac.uk/Christianity/ViewsofIslam
31. Salman the Persian – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Salman_the_Persian
32. Lessons From the Life of Hz Salman the Persian (RA) – Muslim Memo, accessed on August 5, 2025, https://muslimmemo.com/life-salman-persian/
33. The Life of Globetrotter Salman al-Farsi: From Zoroastrianism to Islam – The Muslim Vibe, accessed on August 5, 2025, https://themuslimvibe.com/faith-islam/the-life-of-globetrotter-salman-al-farsi-from-zoroastrianism-to-islam
34. Byzantine–Sasanian War of 602–628 – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Byzantine%E2%80%93Sasanian_War_of_602%E2%80%93628
35. Chronology – The Metropolitan Museum of Art, accessed on August 5, 2025, https://www.metmuseum.org/learn/educators/curriculum-resources/art-of-the-islamic-world/introduction/chronology
36. The Arab conquests 634-751 – The map as history, accessed on August 5, 2025, https://www.the-map-as-history.com/origins-of-islam-and-the-arabo-muslim-empire/the-arab-conquests-634-751
37. Medieval Muslim societies (article) – Khan Academy, accessed on August 5, 2025, https://www.khanacademy.org/humanities/world-history/medieval-times/social-institutions-in-the-islamic-world/a/medieval-muslim-societies
38. 10.3: The Byzantine Empire and Persia – Humanities LibreTexts, accessed on August 5, 2025, https://human.libretexts.org/Bookshelves/History/World_History/World_History_1%3A_to_1500_(OpenStax)/Unit_3%3A_An_Age_of_Religion_5001200_CE/10%3A_Empires_of_Faith/10.03%3A_The_Byzantine_Empire_and_Persia
39. Sasanian Empire – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Sasanian_Empire
40. Sasanian dynasty | Significance, History, & Religion – Britannica, accessed on August 5, 2025, https://www.britannica.com/topic/Sasanian-dynasty
41. Pope Benjamin I of Alexandria – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Pope_Benjamin_I_of_Alexandria
42. Arab conquest of Egypt – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Arab_conquest_of_Egypt
43. www.khanacademy.org, accessed on August 5, 2025, https://www.khanacademy.org/humanities/world-history/medieval-times/spread-of-islam/a/the-rise-of-islamic-empires-and-states#:~:text=Islam%20spread%20through%20military%20conquest,built%20imperial%20structures%20over%20time.
44. Rashidun army – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Rashidun_army
45. The early Islamic empire and the introduction of military slavery (Chapter 1) – The Cambridge History of War, accessed on August 5, 2025, https://www.cambridge.org/core/books/cambridge-history-of-war/early-islamic-empire-and-the-introduction-of-military-slavery/7F7B480CB7492D3F9EE927AD06151B3F
46. Khalid ibn al-Walid – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Khalid_ibn_al-Walid
47. Rashidun Caliphate – World History Encyclopedia, accessed on August 5, 2025, https://www.worldhistory.org/Rashidun_Caliphate/
48. warfare in early islam submitted to the faculty of arts at the university of glasgow in, accessed on August 5, 2025, https://theses.gla.ac.uk/794/01/1997al-mubarakphd.pdf
49. Trade and Commerce During the Islamic Golden Age | The Review …, accessed on August 5, 2025, https://www.reviewofreligions.org/41191/trade-and-commerce-during-the-islamic-golden-age/
50. Trade and Travel | The Metropolitan Museum of Art, accessed on August 5, 2025, https://www.metmuseum.org/learn/educators/curriculum-resources/art-of-the-islamic-world/unit-seven/chapter-one/trade-and-travel
51. READ: Networks and Exchange in the Islamic World (article) | Khan Academy, accessed on August 5, 2025, https://www.khanacademy.org/humanities/whp-origins/era-4-regional/42-systems-restructure-betaa/a/read-networks-and-exchange-in-the-islamic-world-beta
52. The Diffusion of Innovations in Social Networks, accessed on August 5, 2025, https://www.qmul.ac.uk/sef/media/econ/images/documents/ReichJMP10Jan.pdf
53. Diffusion of innovations – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Diffusion_of_innovations
54. The Spread of Islam in West Africa: Containment, Mixing, and Reform from the Eighth to the Twentieth Century – SPICE – Stanford, accessed on August 5, 2025, https://spice.fsi.stanford.edu/docs/the_spread_of_islam_in_west_africa_containment_mixing_and_reform_from_the_eighth_to_the_twentieth_century
55. Trade and Geography in the Spread of Islam – PMC – PubMed Central, accessed on August 5, 2025, https://pmc.ncbi.nlm.nih.gov/articles/PMC8046173/
56. Did you know?: The Spread of Islam in Southeast Asia through the Trade Routes | Silk Roads Programme – UNESCO, accessed on August 5, 2025, https://en.unesco.org/silkroad/content/did-you-know-spread-islam-southeast-asia-through-trade-routes
57. Jizya Tax – (AP World History: Modern) – Vocab, Definition, Explanations | Fiveable, accessed on August 5, 2025, https://library.fiveable.me/key-terms/ap-world/jizya-tax
58. History of International Relations – 4. The Muslim Caliphates – OpenEdition Books, accessed on August 5, 2025, https://books.openedition.org/obp/9091
59. Jizya – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Jizya
60. Jizyah | Definition & Facts | Britannica, accessed on August 5, 2025, https://www.britannica.com/topic/jizya
61. Question for Muslims does the jizya apply to all non-Muslims? : r/religion – Reddit, accessed on August 5, 2025, https://www.reddit.com/r/religion/comments/gozrnp/question_for_muslims_does_the_jizya_apply_to_all/
62. Islam and the Jews: The Pact of Umar, 9th Century CE, accessed on August 5, 2025, https://www.bu.edu/mzank/Jerusalem/tx/pactofumar.htm
63. Pact of Umar – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Pact_of_Umar
64. The Treaty of the Caliph ‘Umar with the People of Al-Quds (Jerusalem), accessed on August 5, 2025, https://caliphate1.com/2023/11/26/the-treaty-of-the-caliph-umar-with-the-people-of-al-quds-jerusalem/
65. University of Stirling The first Muslim conquest of Jerusalem in Muharram 1 7 AH/February 638 CE was an event both remarkable an – DergiPark, accessed on August 5, 2025, https://dergipark.org.tr/tr/download/article-file/294102
66. The Pact of Umar Regulating the Status of Non-Muslims Under Muslim Rule, accessed on August 5, 2025, https://www.jewishvirtuallibrary.org/the-pact-of-umar-regulating-the-status-of-non-muslims-under-muslim-rule
67. A Brief History of Salman, the Persian, accessed on August 5, 2025, https://erfan.ir/english/87608.html
68. The Preservation of Jerusalem: A legacy of the Caliph Umar (ra) – Al Hakam, accessed on August 5, 2025, https://www.alhakam.org/preservation-of-jerusalem-legacy-of-caliph-umar/
69. First Muslim conquest of Jerusalem – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/First_Muslim_conquest_of_Jerusalem
70. The Second Caliph ‘Umar & Extending Civil Liberties to Non-Muslims, accessed on August 5, 2025, https://www.dar-alifta.org/en/article/details/543/the-second-caliph-umar-extending-civil-liberties-to-non-muslims
71. Muslims Occupy Jerusalem for 451 Years until the First Crusade – History of Information, accessed on August 5, 2025, https://www.historyofinformation.com/detail.php?id=1638
72. Islamic Golden Age – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Islamic_Golden_Age
73. Muslim Histories & Cultures — Islam, accessed on August 5, 2025, http://sites.la.utexas.edu/mhc/tag/islam/
74. List of battles involving the Rashidun Caliphate – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/List_of_battles_involving_the_Rashidun_Caliphate
75. Rashidun Caliphate – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Rashidun_Caliphate
76. Chronology for early Islam and the Conquest of Central Asia – faculty.​washington.​edu, accessed on August 5, 2025, https://faculty.washington.edu/dwaugh/hist225/225chron/islchr.html
77. Timeline: Rashidun Caliphate – World History Encyclopedia, accessed on August 5, 2025, https://www.worldhistory.org/timeline/Rashidun_Caliphate/
78. Rashidun Caliphate | Religions of the West Class Notes – Fiveable, accessed on August 5, 2025, https://library.fiveable.me/religions-of-the-west/unit-8/rashidun-caliphate/study-guide/jLI5gWbKNgm79jyW
79. The history of Umayyad caliphate – Ministère de la Culture, accessed on August 5, 2025, https://archeologie.culture.gouv.fr/mosquee-omeyyades/en/history-umayyad-caliphate
80. Umayyad dynasty – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Umayyad_dynasty
81. The Umayyads (661–749 C.E.) (article) | Khan Academy, accessed on August 5, 2025, https://www.khanacademy.org/humanities/art-islam/chronological-periods-islamic/islamic-art-early/a/the-umayyads-661749-ce
82. Umayyad dynasty | Achievements, Capital, & Facts – Britannica, accessed on August 5, 2025, https://www.britannica.com/topic/Umayyad-dynasty-Islamic-history
83. Muslim conquest of the Levant – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Muslim_conquest_of_the_Levant
84. Muslim conquest of Persia – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Muslim_conquest_of_Persia
85. Arab conquest of Egypt – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Muslim_conquest_of_Egypt
86. Muslim conquest of the Maghreb – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Umayyad_conquest_of_North_Africa
87. Muslim conquest of the Iberian Peninsula – Wikipedia, accessed on August 5, 2025, https://en.wikipedia.org/wiki/Umayyad_conquest_of_Hispania