More than one hundred years ago Western scholars began to investigate the origins of Islam, using the highest standards of objective historical scholarship of the time. Their aim was to determine what could be known about Muhammad and the rise of early Islam quite apart from the pious and totally unobjective traditions preserved by the Muslim religious community. In some ways this research was inspired by a similar investigation of Christianity made famous by Albert Schweitzer's Quest of the Historical Jesus. Today although much has been learned about early Christianity, little comparable progress has been made in the field of Islamic Studies. Here objective historical research has long been severely handicapped both by the resistance of Muslim societies to Western analysis of their sacred traditions and by the apologetic approaches of many Western scholars, who have compromised their investigations for fear of offending Muslim sensibilities.