Who Was Muhammad? What Historians Can Know

Muhammad ibn ʿAbd Allāh was born in Mecca, a sanctuary town of western Arabia, into the clan of Hāshim of the tribe of Quraysh, probably in the third quarter of the sixth century. He was orphaned young, married a widowed merchant, Khadīja, and from about 610 began to recite words he understood as revelation from the one God, calling his townspeople to abandon their gods and prepare for judgment. Opposition in Mecca drove him and his followers in 622 to the oasis of Yathrib, later Medina, where he became leader of a community bound by written pacts. Over eight years of war with Mecca, and conflict with Medina’s Jewish tribes, his following grew until he took Mecca in 630 and received the allegiance of much of Arabia. He died in Medina in 632. That outline is accepted by almost all historians. Nearly everything inside it, the dates, the speeches, the stories of each battle and each marriage, comes from biographies written a century and more after his death, and is weighed report by report. Majority

This chapter separates the layers. The Qur’an, a text of his lifetime or very near it (§3), shows his message and his opponents but almost no narrative. The documents and outside witnesses of §0 confirm the outline. The sīra, the biography tradition that begins with ʿUrwa ibn al-Zubayr (d. c. 712) and Ibn Isḥāq (d. 767), supplies the story. Each claim below says which layer it rests on. Whether Muhammad received revelation is outside what historical method can test (§0).

Timeline

What can be known, and from what

The outline, and why historians accept it

Four independent kinds of evidence converge on the outline of Muhammad’s career.^[15]​^[16]

• Outside witnesses. A Syriac chronicle by Thomas the Presbyter, written about 640, records a battle near Gaza in February 634 fought by “the Arabs of Muhammad”.^[13] The Armenian history attributed to Sebeos, finished in the 660s, describes him as a merchant of the sons of Ishmael who taught the Arabs the God of Abraham.^[17] Neither writer was a Muslim or depended on Muslim books (§0). Consensus
• The Qur’an. It names Muhammad four times (3:144, 33:40, 47:2, 48:29), calls him “God’s Messenger and the seal of the prophets”, and addresses a prophet in conflict with his own people, then leading believers in war.^[18]​^[19] Consensus on what the text says.
• Documents. The Hijri era is in use on an Egyptian papyrus of 643, twenty-one years after the emigration it counts from, and a coin of 685–686 proclaims “Muhammad is the messenger of God”.^[5]​^[14] Consensus
• The Muslim tradition itself, unanimous on the outline across rival schools, sects and regions, from the earliest reports onward.^[20] Majority

Did Muhammad exist?

The question is asked often online and almost never by specialists. A few writers, among them some associated with the Inārah research group in Germany, have argued that muḥammad (“praised”) began as an epithet, perhaps of Jesus, and was later read as a name. The idea has found almost no support among specialists. The Syriac text of about 640 that names “the Arabs of Muhammad” as a living leader’s followers, the Armenian account of the 660s, and the tradition’s unanimous memory are hard to explain without a historical person, and easy to explain with one.^[21]​^[16] The historian Joshua Little, reviewing the evidence in 2025, concluded that “there can be no reasonable doubt that the founding prophet of Islam existed in history”.^[21] Consensus

The biographies, and their distance

The full story of Muhammad’s life comes from the sīra. Its earliest surviving full form is Ibn Isḥāq’s biography, written in the 750s or 760s and known mainly through the edition of Ibn Hishām (d. 833); al-Wāqidī (d. 823), Ibn Saʿd (d. 845) and al-Ṭabarī (d. 923) add more.^[2]​^[22]​^[23] Behind them lie collectors of the previous generation, above all ʿUrwa ibn al-Zubayr, whose accounts Andreas Görke and Gregor Schoeler have traced from later quotations.^[24]​^[20] Majority that a core of reports reaches the late seventh century.

The tradition’s narrative is coherent and vivid, and much of it may be accurate. But it was told by people who knew the outcome, who needed stories to explain Qur’anic verses and to ground law, and whose families, factions and sects had stakes in who did what. Patricia Crone, the most influential sceptic, nonetheless singled out one document preserved in it, the Constitution of Medina (below), as unusually solid evidence.^[25] Michael Cook’s short life of Muhammad (1983) put the problem plainly: the sources are abundant, but the further one moves from the outline, the less securely they can be checked.^[26] Majority

Mecca and the early life

Quraysh and the House

The Qur’an addresses a people it calls Quraysh by name once, in a short sura that ties their prosperity to the sanctuary:

li-īlāfi quraysh; īlāfihim riḥlata l-shitāʾi wa-l-ṣayf; fa-l-yaʿbudū rabba hādhā l-bayt; alladhī aṭʿamahum min jūʿin wa-āmanahum min khawf

“[He did this] to make the Quraysh feel secure, secure in their winter and summer journeys. So let them worship the Lord of this House: who provides them with food to ward off hunger, safety to ward off fear.” (Q 106, trans. Abdel Haleem)^[27]​^[28]

The House is the Kaʿba; the journeys are, in the tradition, trading caravans. How large Mecca’s trade was is debated: Patricia Crone argued in 1987 that the picture of a great international entrepôt is not supported by outside evidence, and others have replied that local and regional trade, and the sanctuary’s pilgrimage fairs, were enough to make Quraysh prosperous (§1).^[29] Contested Translations of the Qur’an in this chapter are Abdel Haleem’s (2004).

Birth, the Elephant and round numbers

The tradition places Muhammad’s birth in the “Year of the Elephant”, when an army from South Arabia with an elephant marched on Mecca and was miraculously turned back, the event alluded to in sura 105 (“Do you not see how your Lord dealt with the army of the elephant?”).^[30] Later scholars equated that year with about 570. Majority as the tradition’s date.

Lawrence Conrad showed in 1987 that the date is less secure than it looks. The early reports disagree about how many years separated the Elephant from the birth, from none to several decades; South Arabian inscriptions show the king Abraha campaigning in central Arabia around 552, and he seems to have died by about 570; and the tradition’s ages for Muhammad (forty at his call, sixty-three at his death) fit literary patterns for prophets and sages as much as calendars.^[1] Majority that the traditional chronology before 622 is approximate. Most historians give his birth as “about 570” or a range in the third quarter of the sixth century. Majority

Orphan, merchant, husband

The tradition says his father, ʿAbd Allāh, died before he was born and his mother, Āmina, when he was six; he was raised by his grandfather ʿAbd al-Muṭṭalib and then by his uncle Abū Ṭālib, chief of the clan of Hāshim.^[2] A Qur’anic passage addressed to the prophet agrees with the outline: “Did He not find you an orphan and shelter you? Did He not find you lost and guide you? Did He not find you in need and make you self-sufficient?” (Q 93:6–8).^[31] Majority

As a young man he worked in the caravan trade, and at about twenty-five, the tradition says, he married Khadīja bint Khuwaylid, a widowed merchant who had employed him and who was some years older; she is said to have been forty, though some reports make her younger.^[2]​^[22] She bore him his children who lived to adulthood, among them Fāṭima, and he took no other wife while she lived. Majority on the outline; Contested on the ages.

The Meccan preaching

The call

The tradition says that at about forty, while in retreat in a cave on Mount Ḥirāʾ above Mecca, he was seized by the angel Gabriel and commanded “Read!” or “Recite!”, the opening of sura 96; that he returned shaken to Khadīja, who comforted him and became the first believer; and that a second early revelation, “You, wrapped in your cloak, arise and give warning!” (Q 74:1–2), sent him to preach.^[2]​^[3]​^[32] That these were the first revelations is the tradition’s account, not something the text says (§3). Majority as tradition.

The message, as the Qur’an gives it

What the early, short suras say is clearer than when they were first recited. They call on their hearers to recognise one God, creator and sustainer, in the signs of nature; to prepare for a day of judgment when the dead will be raised and deeds weighed; to care for orphans and the poor instead of hoarding wealth; and to see in the punished peoples of the past, ʿĀd, Thamūd, the people of Noah and of Lot, a warning.^[33]​^[34] Consensus on the themes. The opponents the text answers deny resurrection, demand a sign or an angel, and ask “What sort of messenger is this? He eats food and walks about in the marketplaces!” (Q 25:7).^[35] Consensus

The Qur’an’s titles for Muhammad belong to this argument: rasūl Allāh, “the messenger of God”; al-nabī, “the prophet”; nadhīr and bashīr, “warner” and “bearer of good news”; khātam al-nabiyyīn, “the seal of the prophets” (33:40); and al-nabī al-ummī (7:157), “the unlettered prophet” in Abdel Haleem’s translation, though some scholars read ummī as “of the gentiles”, a prophet to a people without scripture.^[18]​^[36]​^[33] Contested on ummī. One verse has Jesus foretell a messenger “whose name will be Aḥmad” (61:6), a form of the same root as Muhammad.^[37] Consensus on the text.

Opposition and emigration to Ethiopia

The tradition describes years of mounting hostility from the leaders of Quraysh, whose gods and pilgrimage trade the preaching threatened: ridicule, pressure on converts of low status, a boycott of Muhammad’s clan, and the emigration of a group of his followers to the Christian kingdom of Aksum, across the Red Sea, around 615.^[2] Majority on the pattern. The episode of the “Satanic verses”, in which some early reports say Muhammad briefly praised the goddesses of Mecca, is discussed with its sources in §3.

About 619, by the tradition’s count, Khadīja and Abū Ṭālib both died, and Muhammad lost his wife and his clan’s protection.^[2]​^[4] He sought support at the town of al-Ṭāʾif and was rebuffed, and then reached agreements, at two meetings at al-ʿAqaba near Mecca, with pilgrims from the oasis of Yathrib, whose Arab clans were divided by feuds and who undertook to protect him.^[2] Majority

Medina

The hijra and the new era

In 622 Muhammad and his Meccan followers, the muhājirūn (“emigrants”), moved to Yathrib, which the tradition soon called al-madīna, “the city”, or madīnat al-nabī, “the city of the prophet”. The Medinan converts became the anṣār, “helpers”. Consensus on the move and the names.

The hijra became the start of the Muslim calendar. The reckoning, adopted under the caliph ʿUmar about 638 according to the tradition, counts from the first day of the lunar year in which the emigration took place, 16 July 622; Muhammad’s own arrival came some weeks later. The Egyptian papyrus PERF 558, dated “year twenty-two”, shows the era in official use by 643, and the Greek half of the same document calls the Arab troops magaritai, probably the muhājirūn.^[5] Consensus

The Constitution of Medina

Ibn Isḥāq’s biography, and independently the jurist Abū ʿUbayd (d. 838) in his book on public finance, preserve a long document of pacts between “Muhammad the prophet” and the believers of Quraysh and Yathrib “and those who followed them”.^[6]​^[2] It declares that they “are one community (umma) to the exclusion of other people”, regulates blood-money and the ransom of captives clan by clan, names God and Muhammad as the final authority in disputes, and includes Jewish groups allied to the Medinan clans:

wa-inna yahūda banī ʿawfin ummatun maʿa l-muʾminīn; li-l-yahūdi dīnuhum wa-li-l-muslimīna dīnuhum

“The Jews of Banū ʿAwf are a community along with the believers; to the Jews their religion and to the Muslims theirs.”^[6]​^[7]

Its age is unusually well supported for a text preserved in the sīra. It lacks a chain of transmitters, uses archaic language, organises the community by clans and alliances, and gives the Jews a place inside the umma that no later author would have invented after the tribes’ expulsion.^[38]​^[7]​^[25] Most scholars accept it as early. W. Montgomery Watt dated it to the first years after 622;^[39] R. B. Serjeant argued in 1978 that it combines eight separate documents issued over Muhammad’s first seven years in Medina;^[38] Michael Lecker’s edition of 2004 treats it as “Muḥammad’s first legal document”.^[7] Majority on authenticity; Contested on whether it is one document or several.

What the Constitution shows is a community defined first by alliance and religion together, with Muhammad as arbiter, and with Jewish clans as members of the umma while keeping their own religion. Fred Donner reads it as evidence that the early community was open to monotheists of other confessions; others think the clauses on the Jews are terms of alliance rather than of religious fellowship.^[15] Contested

The wars with Mecca

The Medinan community lived by raids on Meccan caravans, which brought on war. The Qur’an names one battle by place: “God helped you at Badr when you were very weak” (Q 3:123).^[8] The tradition dates Badr to 624, a victory of some three hundred Muslims over a larger Meccan force; Uḥud, outside Medina, to 625, a defeat; and the siege of Medina in 627, when a Meccan-led coalition failed to break a trench dug across the open approach to the oasis.^[2]​^[39] Majority on the sequence and dates; the Qur’an alludes to all three but gives no numbers or dates.

In 628 Muhammad led his followers to perform the pilgrimage at Mecca and, turned back at al-Ḥudaybiyya, agreed a ten-year truce with Quraysh. The tradition reads the opening of sura 48, “Truly We have opened up a path to clear triumph for you”, as referring to it.^[11]​^[2] In the same year his forces took the Jewish oasis of Khaybar, north of Medina, leaving its farmers on the land in return for half the harvest. When the truce broke down in 629–630, Muhammad marched on Mecca, which surrendered almost without fighting in January 630; the idols of the Kaʿba were destroyed, and most of Quraysh accepted Islam.^[2] Majority

The Jewish tribes of Medina

Medina’s oasis was home to Arab clans and to Jewish tribes, among them the Qaynuqāʿ, the Naḍīr and the Qurayẓa, who lived from farming, crafts and trade. What happened to them is told in detail only in the Muslim biographies, and its modern use is fought over. Political on the modern framing.

According to Ibn Isḥāq and al-Wāqidī:^[2]​^[39]

• The Qaynuqāʿ were besieged after a quarrel in their market in 624, soon after Badr, and expelled with their movable goods.
• The Naḍīr were accused of plotting to kill Muhammad and, after a siege in 625, left for Khaybar. The Qur’an’s sura 59 is traditionally read as referring to them: “It was He who drove those of the People of the Book who broke faith out from their homes at the first gathering of forces” (59:2).^[9]
• The Qurayẓa were accused of negotiating with the coalition during the siege of 627. When they surrendered, Muhammad left their fate to Saʿd ibn Muʿādh, chief of the Aws, their former allies, who ruled that the men should be killed, the property divided and the women and children taken captive. Ibn Isḥāq gives the number of men as six or seven hundred, and notes that some put it at eight or nine hundred.^[2] The Qur’an alludes to the episode: “He brought those People of the Book who supported them down from their strongholds… Some of them you killed and some you took captive. He passed on to you their land, their houses, their possessions” (33:26–27).^[10]

Historians accept the outline: Medina’s Jewish tribes were expelled or destroyed within five years of the hijra, and the Qur’an alludes to both the expulsions and the killing.^[39]​^[40]​^[41] Majority The numbers, the accusations and the details come only from Muslim sources written more than a century later, and are debated. W. N. Arafat argued in 1976 that the execution of hundreds is unlikely: it conflicts with Islamic legal principle, is unknown to the Qur’an’s own account in that form, and reached Ibn Isḥāq partly from descendants of the Qurayẓa and from informants the jurist Mālik distrusted; he thought only the leaders were executed.^[40] M. J. Kister replied in 1986, from a wide range of early reports, that the tradition’s core account of a mass execution is early and consistent.^[41] Contested on the numbers.

Both the polemical use of this episode, as proof that Islam was hostile to Jews from the start, and the apologetic denial that anything of the kind happened, outrun the evidence. What can be dated is the tradition’s account, from the mid-eighth century, and the Qur’an’s briefer allusions. For the Jewish side of the story and the later history of Jews under Islam, see Judaism §8. Political

The last years

After the conquest of Mecca, the tradition describes a victory over the Hawāzin tribe at Ḥunayn, an expedition north to Tabūk on the Byzantine frontier, and a stream of delegations from across Arabia pledging allegiance. In early 632 Muhammad led the pilgrimage to Mecca, the “farewell pilgrimage”, and returned to Medina, where he fell ill and died in Rabīʿ I of year 11, June 632, in the room of his wife ʿĀʾisha; most reports give his age as sixty-three.^[2]​^[23] Majority

He left no son and, in the Sunni account, no designated successor; the community chose Abū Bakr. Shia Muslims hold that he had designated his cousin and son-in-law ʿAlī, above all at the pool of Ghadīr Khumm on the way back from the pilgrimage. How the succession was settled, and how that dispute became two communities, is the subject of §4 and §6. Consensus that the question was disputed.

Several early Christian, Jewish and Samaritan texts seem to place the prophet alive at the start of the invasion of Palestine in 634. Stephen Shoemaker argues that they preserve an early tradition later revised; most historians read them as second-hand and keep 632 (§0).^[42]​^[16] Contested

Muhammad’s marriages

The wives

While Khadīja lived, Muhammad was married to her alone. After her death, by the tradition’s count, he married about a dozen women over the following thirteen years, most of them in Medina: among them Sawda, a widow of an early convert; ʿĀʾisha, daughter of Abū Bakr; Ḥafṣa, daughter of ʿUmar; Zaynab bint Jaḥsh, previously the wife of his adopted son Zayd (a marriage the Qur’an discusses, 33:37); Umm Salama; and Ṣafiyya, a woman of the Jewish Naḍīr captured at Khaybar.^[22]​^[43] Majority on the list. Historians from Watt onward have read many of these marriages as alliances, with the families of his closest companions, with tribes, and with the widows of men killed in his wars.^[39]​^[44] Majority

ʿĀʾisha’s age: the reports

The marriage that has drawn most modern attention is to ʿĀʾisha. The evidence is a group of hadith in the two most authoritative Sunni collections, mostly in her own voice. In al-Bukhārī’s version:

anna l-nabiyya ṣallā llāhu ʿalayhi wa-sallam tazawwajahā wa-hiya bintu sitti sinīn, wa-udkhilat ʿalayhi wa-hiya bintu tisʿ, wa-makathat ʿindahu tisʿā

“That the Prophet married her when she was six years old and he consummated his marriage when she was nine years old, and then she remained with him for nine years.” (al-Bukhārī 5133)^[45]

Other reports in al-Bukhārī tell the same story at length, with ʿĀʾisha recalling that she was playing on a swing with her friends when her mother came to prepare her (3894), and date the marriage contract to about three years before the hijra, after Khadīja’s death (3896).^[46]​^[4] Muslim’s Ṣaḥīḥ gives four versions under one number (1422): she was six, or in one version seven, at the contract, nine when she moved to his house “and her dolls were with her”, and eighteen when he died.^[47] Ibn Saʿd’s biographical dictionary (before 845) and al-Ṭabarī give the same ages.^[22]​^[23] Consensus on what the sources say.

The transmitters

The chains of transmission matter, because they are the only way to date the reports. Most run through Hishām ibn ʿUrwa (d. c. 763), son of ʿUrwa ibn al-Zubayr, ʿĀʾisha’s nephew; Hishām taught in Medina and, late in life, in Iraq, and the students who carried his version were largely Iraqi.^[45]​^[47]​^[48] Muslim also preserves two chains that do not pass through Hishām: one from al-Zuhrī through ʿUrwa (the version that says seven), and one from the Kufan al-Aswad ibn Yazīd, a student of ʿĀʾisha, through Ibrāhīm al-Nakhaʿī and al-Aʿmash.^[47] Consensus on the chains as recorded.

Classical Muslim scholarship accepted the report without difficulty. The great hadith critics placed it in their sound collections, the jurists cited it in discussing guardianship and marriage, and the biographers repeated it; the historian Denise Spellberg and the scholar of religion Kecia Ali note that premodern writers stressed it chiefly as proof that ʿĀʾisha was Muhammad’s only virgin bride, a mark of honour in debates over her status.^[44]​^[49] Majority

The modern debate

From the twentieth century, as marriage ages changed and polemicists made the report a charge against Muhammad, some Muslim writers, among them the Egyptian ʿAbbās Maḥmūd al-ʿAqqād, recalculated ʿĀʾisha’s age upwards.^[49] The arguments most often made rest on other reports: that her sister Asmāʾ was ten years older than she and died in 73 AH aged a hundred, which would make ʿĀʾisha about seventeen to nineteen at the marriage; that she was said to have been promised earlier to another man; and that Hishām’s memory and his Iraqi transmissions were criticised by some early authorities. Jonathan A. C. Brown notes that traditional scholars rejected such recalculations, because they set reports of weaker standing against reports the hadith sciences ranked as the soundest.^[50] Contested; Political on the motives ascribed by each side.

A different kind of argument came from source criticism. In a 2022 Oxford doctoral thesis, Joshua Little applied the methods of isnād and text comparison (§0) to all the versions and concluded that the report originated with Hishām ibn ʿUrwa in Iraq in the mid-eighth century, in a period when proto-Sunni and proto-Shia factions were arguing over ʿĀʾisha’s standing; he judged the other chains to be later borrowings, and concluded that there is no longer “any solid basis” for thinking the marriage took place in her childhood.^[48] That conclusion is about the report’s origin; it does not establish another age. Contested

What a historian can say is limited. The report is old: it is attested by the mid-eighth century, in several collections, through more than one chain, and it was accepted by classical scholars across schools. Whether it preserves ʿĀʾisha’s actual age, a later memory, or a figure shaped by sectarian argument cannot be settled from the evidence available. The early sources show no unease about the age they report. How modern readers judge it is a separate question from what the evidence can establish, and this chapter does not try to answer it. Political on the modern use; Contested on the age.

The evidence

Primary sources

What is absent

• A contemporary biography. Nothing about his life was written down, as far as is known, in his lifetime or for decades after; the earliest narratives are of the generation after his companions. Consensus
• Muhammad’s name on a dated Muslim document before 685–686. The early documents name God and the caliphs; outside writers name him from about 640 (§0). Consensus
• Exact dates before 622. The year of his birth, his age at his marriage and at his call come only from the tradition and are partly schematic. Majority
• An outside source on the Jewish tribes of Medina. No Jewish or Christian text of the seventh century describes their expulsion or the Qurayẓa’s fate; the account is the Muslim tradition’s. Majority
• A designated successor recognised by all. The tradition records rival claims, which became the Sunni–Shia division (§4, §6). Consensus
• Images from his lifetime or the following centuries. The earliest surviving paintings of Muhammad are from the early fourteenth century (§0). Consensus

Debates

How much of the sīra is history?

Majority for the middle positions; Contested overall.

What happened to the Qurayẓa?

The tradition’s account of a mass execution, with numbers from 600 to 900, against Arafat’s argument that only the leaders died and Kister’s reply that the core account is early and consistent.^[2]​^[40]​^[41] Contested on numbers; Political on the modern use.

ʿĀʾisha’s age

The classical acceptance of six and nine; modern Muslim recalculations to her later teens, from reports about her sister and her engagement; and Little’s transmission-critical case that the report began with Hishām ibn ʿUrwa in Iraq.^[45]​^[47]​^[50]​^[48] Contested; Political.

When was Muhammad born, and when did he die?

The traditional birth in the Year of the Elephant, about 570, against Conrad’s demonstration that the early chronology is schematic; the unanimous Muslim date of death in 632, against Shoemaker’s reading of the non-Muslim sources.^[1]​^[42] Majority for an approximate birth and 632; Contested on the precise dates.

Further reading