<P> Richard Felix Staar described Czechs as "tolerant and even indifferent towards religion as a rule". </P> <P> After the Bohemian Reformation, most Czechs (about 85%) became followers of Jan Hus, Petr Chelcicky and other regional Protestant Reformers . Bohemian Estates' defeat in the Battle of White Mountain brought radical religious changes and started a series of intense actions taken by the Habsburgs in order to bring the Czech population back to the Roman Catholic Church . After the Habsburgs regained control of Bohemia, Czech people were forcibly converted to Roman Catholicism . All kinds of Protestant communities including the various branches of Hussites, Lutherans and Reformed were either expelled, killed, or converted to Catholicism . The Catholic Church lost the bulk of its adherents during the Communist era . </P> <P> As of 2015, Pew Research Center found in that 72% of the population of Czech Republic declared to be irreligious, a category which includes atheists, agnostics and those who describe their religion as "nothing in particular", 26% were Christians, while 2% belonged to other faiths . </P> <P> In the Czech Republic, the nation state of the Czech people, 6,732,104 (63.7%) declared as ethnic Czech according to the 2011 census . Notably, another 2,742,669 (26%) were undeclared, and 522,474 (4.9%) declared as Moravians . There is a large Czech diaspora, which includes 1,703,930 Americans of Czech / Czechoslovak ancestry, 94,805 Canadians of Czech ancestry, an estimated 45,000 Czech - born residents in the United Kingdom, and ca . 31,000 in Australia . There are smaller communities throughout Europe . </P>

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