Anti-clericalism is opposition to religious authority, typically in social or political matters. Historical anti-clericalism has mainly been opposed to the influence of Roman Catholicism. Anti-clericalism is related to secularism, which seeks to separate the church from public and political life. Some have opposed clergy on the basis of moral corruption, institutional issues and/or disagreements in religious interpretation, such as during the Protestant Reformation. Anti-clericalism became extremely violent during the French Revolution, because revolutionaries claimed the church played a pivotal role in the systems of oppression which led to it. Many clerics were killed, and French revolutionary governments tried to put priests under the control of the state by making them employees. Anti-clericalism appeared in Catholic Europe throughout the 19th century, in various forms, and later in Canada, Cuba, and Latin America. According to the Pew Research Center several post-communist states are current practitioners of political anti-clericalism, including Uzbekistan, Azerbaijan, Kazakhstan, Tajikistan, Kyrgyzstan, Turkmenistan, Vietnam, China and North Korea. During the Protestant Reformation, anti-clericalism resulted from opposition to the political and economic privileges of the clergy. The Civil Constitution of the Clergy was passed on July 12, 1790, requiring all clerics to swear allegiance to the French government and, by extension, to the increasingly anti-clerical National Constituent Assembly. All but seven of the 160 bishops refused the oath, as did about half of the parish priests. Persecution of the clergy and of the faithful was the first trigger of the rebellion; the second being conscription. Nonjuring priests were exiled or imprisoned and women on their way to Mass were beaten in the streets. The anti-clericalism during the French Revolution initially began with attacks on church corruption and the wealth of the higher clergy, an action with which even many Christians could identify, since the Roman Catholic church held a dominant role in pre-revolutionary France.