Edited sentence: At the same time, Bahá'í leaders have gradually tightened their authority during the twentieth century, with the result that many converts--initially attracted by the faith's support of liberal causes--find themselves at odds with a more conservative strain which some have called "Bahá'í fundamentalism.Its Bahá'í successors tend to be blamed not only for these historical sins but also for their faith's relationship with Israel; its support for liberal, modernist values; its perceived clannishness within Iran; and its support for the Shah's government.Members of several of these groups, including the main body of Haifa Bahá'ís, make it a practice to "shun" members of rival sects.The Bahá'í Faith grew out of the Bábí movement (1844-1852), a series of religiously-motivated uprisings against the Persian government.The fact that its leader, the Báb, ultimately claimed equality with the Prophet Muhammad did little to improve its reception.The faith has suffered several schisms since the original one, the Bahá'í/Bábí split.To this day, the name "Bábí" carries connotations of anarchism and rebellion among ordinary Iranians.While non-Haifa groups are numerically insignificant (numbering perhaps a few thousand altogether), the Haifa authorities have been accused of excommunicating dissidents within their own ranks