8.7: The Expansion of Islam

The Prophet Muhammad started publically preaching his strict brand of monotheism in the year 613, by reciting the Quran, quickly convincing some of the commoners of Mecca to believe in him. Most of his early converts belonged to groups of people who had failed to achieve any significant social mobility, which, of course, included many of the poor. His followers memorized his recitations and message that called for the powerful to take care of the weak, a message that resonated with many of these economically and socially marginalized. Islam served as a binding force, replacing tribal solidarity, or ‘asabiyah.

Muhammad’s message challenged the Umayyad Clan’s leadership of society. The most powerful branch of the Quraysh Tribe, the Umayyads had been enriching themselves from the lucrative caravan trade while, at the same time, ignoring the privations of the needy. Prodding his tribal brethren, Muhammad had also spoken out against the traditional pagan gods. Tribal tradition dictated that the polytheistic Arabs of the peninsula worship their tribal gods; they also believed in jinns, or nature spirits. As custodians of the Ka‘ba, which contained all of these traditional Arabian religious images, the Umayyad Clan augmented their income by collecting revenue from the traditional pilgrimage to Mecca.

The political implications were clear. The Muslims threatened to disrupt a delicate equilibrium. The Prophet’s message jeopardized the social and economic standing of the elite members of society, who accused the Muslims of serving as agents of unwelcome change. Tensions grew, and conflict spilled into the streets of Mecca, dragging the two respective camps into the fray. The more that Muhammad’s followers grew in number, the more opposition they encountered from the Umayyad Clan. To avoid this conflict, some Muslims fled to the Kingdom of Aksum, located in Ethiopia, at this stage in the early history of Islam, where they received protection from Muhammad’s enemies under the Christian King Armah. Indeed, the first Muslims went by the name of muhajirun, meaning “emigrants,” for they would soon be forced to leave Mecca under pain of severe Umayyad persecution.

During this period, Muhammad’s wife Khadija died in 619. With her death, Muhammad lost his source of emotional support and fell into depression, thus enduring a personal crisis. That same year, the Prophet’s uncle Abu Thalib passed away. Already bereaved, Muhammad further suffered the loss of his personal protector in the Quraysh Tribe. Now cut off from the tribal leadership and accused of stirring sectarian tension, Muhammad was on his own and vulnerable to Umayyad harassment in Mecca.

Figure \(\PageIndex{1}\): The Quba Mosque of Medina | The oldest mosque in Islam. (CC BY-SA 3.0; User “Abderlrhman 1990” via Wikimedia Commons)

While Muhammad endured harsh reprisals from the Umayyads for his public preaching, a conflict was boiling in Yathrib, later called Medina, a trade city located a few days to the north of Mecca. Some individuals from Medina had traveled to Mecca in 620, where they heard the Prophet preach and soon adopted Islam. Impressed by his reputation as an honest man, the leaders of Medina invited Muhammad to their city in 622 to act as a mediator of tribal infighting over a shared oasis. As opposition in Mecca had become too intense for Muhammad and his followers to remain there, they migrated to Medina in 622, a seminal event known as the hijra that marks the first year of the Islamic calendar. The Prophet rapidly converted many of the city’s inhabitants to Islam. These new Muslims came to be identified as the ansar, meaning “helpers.” Together with the muhajirun, the ansar helped the Prophet institutionalize the religion of Islam and develop an umma, or community of believers, that would dominate the social and political life of Medina.

Muhammad assumed five different roles in Medina. First and foremost, he was the Prophet of Islam; therefore, he was the religious leader of the community. Second, he acted as the political leader of the umma. Because his followers agreed with him politically, they agreed with him religiously as well. Third, Muhammad served as a judicial leader, using the Quran as the basis of law. Fourth, the Prophet functioned as a legislator, working with the majlis, or council of elders, to enact laws. He therefore governed his capital, Medina, with no separation of church and state. Finally, Muhammad was a military leader who ensured that statehood would prevail for the Muslims.

A major concern of Muhammad’s leadership was to determine how the Muslims could contribute to the Medinan economy. He received a revelation during this period that suggested the Muslims should raid the caravans coming north out of Mecca. (Qur’an 22:39) In 624, the Medinans engaged a caravan of Meccans along a popular trade route bypassing Medina. In the ensuing Battle of Badr, named after a nearby oasis, 300 Muslims defeated nearly 1000 Meccans and seized their caravan. They considered their signal victory a sign from God that he was on their side. Their success enhanced Muhammad’s prestige and that of the Islamic community among the Arab tribes in the peninsula.

Map \(\PageIndex{1}\): Map of the Battle of Badr (CC BY-SA 3.0; User “Vedantm” via Wikimedia Commons)

Unwilling to cede control of the lucrative caravan trade to the upstart Muslims of Medina, the Umayyads confronted the Muslims in 625 in the Battle of Uhud, which referred to a local mountain. Foot soldiers in the vanguard of the Muslim forces led their defense. Meanwhile, a group of ambitious archers, ignoring the Prophet’s command to remain stationary, joined the battle. Their imprudent action let the Meccan cavalry strike the unprotected flank of Muhammad’s warriors. The Meccans failed to capitalize on their victory, however, and were unable to take Medina, a failure that leads some historians to consider the battle an ultimate success for the Muslims.

Map \(\PageIndex{2}\): Map of the Battle of Uhud (CC BY-SA 1.0; User “Warda99” via Wikimedia Commons)

In 627, the Umayyads of Mecca and the Muslims of Medina met in a final confrontation in what became known as the Battle of the Trench, or khandaq in Arabic; this battle ended in another triumph for the Muslims. In preparation for a foreseeable Umayyad attack, a Persian engineer named Salman had suggested that the Medinans build defensive works around the city. So the Muslims survived the Meccan assault by entrenching themselves behind a near-impregnable barrier. In 628, the Umayyads finally realized that they were unable to vanquish the Muslims so sent a delegation of Meccans to sue for peace. The resulting Treaty of Hudaybiyyah symbolized their desire to extricate themselves from a losing situation, as Mecca ultimately compromised so their merchant elite would not lose any more trade to the Medinans. The treaty provided for an official tolerance of Islam and for the Muslims to return to Mecca the following year, free from persecution.

Map \(\PageIndex{3}\): Map of the Battle of the Trench (CC BY-SA 3.0; User “Bless sins” via Wikimedia Commons)

In 630, two years before his death, the Prophet Muhammad advanced on the city of Mecca with an army of some 10,000 Muslims. Encountering only limited resistance, the army of Muslims took control of the city, an act that symbolized the idea of Islamic expansion. Muhammad cleansed the Ka’ba of its purported 360 religious images and dedicated it to God. The prestige of the Muslims extended with their victory over the Meccans. As tribes learned of this triumph, they soon followed the lead of the winners, both politically and religiously, sending delegations to forge alliances with the Prophet. By the time that Muhammad passed away, most of Arabia had converted to Islam. The religion provided the Muslims of the peninsula with a new ‘asabiyah, or social solidarity, endowing the movement with a unity of purpose.

In the absence of the Prophet, Muslim leaders had to develop a body of law to deal with important legal questions. Over time, Sharia law became a legal system in which Islamic principles provided an accepted means to regulate all features of daily life, including, but not limited to, economics, politics, family life, and society. Sharia law is based on the Quran, Hadith, precedent, and interpretation. In fact, the capacity for various interpretations of the law has led to the development of several schools of Islamic jurisprudence.