to take his place. This void was filled by a series of caliphs (Arabic for“successor”or
“representative”),^153 a role assumed by successive leaders of Islam until the demise of
the Ottoman Empire in 1923, in the aftermath of World War I. The first caliphs
were drawn from those who had directly served Muhammad and were known as the
Patriarchal Caliphate or“Rightly Guided Caliphs” (632–661 CE).^154 Soon after
Muhammad’s death, many of the Arab groups that had previously submitted to his
teachings and leadership sought to disassociate themselves from the new caliphs.
Armed groups of“believers”were quickly dispatched to suppress these dissenters, and
within a few years, the many nomadic tribes and the urban areas of the Arabian
Peninsula had been completely subdued. By the middle of the seventh century, the
“believers”held control of most of what is now called the Middle East.^155 As Donner
points out, these conquests“established a large new empire in the Near East, with a
leadership‘committed to a new religious ideology.’”^156 The new empire provided the
political order and organizational structure necessary for the spread of Islam.
The death of the last of the caliphates who had a direct connection to Muhammad
ended the era of the Patriarchal Caliphate and ushered in the Umayyad Caliphate
(661–750 CE). This period brought many changes to Islam, one of which was the
relocation of the capital from Medina in Arabia to Damascus in Syria. Of greater
consequence, consolidation of the Middle East enabled Muslims to embark on the
conquest of more distant lands. To the west, Muslims spread across all of North
Africa, crossing into southern Europe in 710, where they remained a significant pres-
ence until 1492, when Christian armies forced them to abandon the city of Granada
(in present-day Spain), the last Muslim bastion in Western Europe.^157 To the east,
Islam moved across what is now Iran, Afghanistan, and Pakistan and into India and
Central Asia, ultimately reaching western China. Southward, Islam extended to
present-day Indonesia and the southern Philippines, where it continues to command
a dominant position. Despite the geographical advances of Islam during this period,
the Umayyad Caliphate was not without internal problems. Questions of leadership
succession persisted and ultimately led to civil wars and the division of Islam into its
two major branches—Sunni and Shia. Today, Sunnis represent 87 to 90 percent of all
Muslims and Shia 10 to 13 percent,^158 with the latter concentrated in Iran, Iraq,
Pakistan, and India. The fundamental difference separating them has its roots in the
question of leadership of the Muslim community, and the historical basis of those
differences justifies a brief review.
Sunnis believe that the leader of Islam should be whoever is best qualified. The
Shia, however, contend that leadership is a function of heredity, through lineage
traced to Muhammad. Originally, the two groups saw themselves divided not by ide-
ology but by a question of politics, but with the passage of time, varied theological
TABLE 5.8 Eras of Islamic Civilization
Prophet Muhammad 610 – 632
PatriarchalCaliphate (Rightly Guided Caliphs) 632 – 661
Umayyad Caliphate 661 – 750
Abbasid Caliphate 750 – 1258
Medieval Islam^1259 – 1300?
Ottoman Empire^1301 –^1923
Nation-states^1923 – Present
The Rise and Spread of Islam 191
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