Religion in the Czech Republic is varied, with a vast majority of the population (78%) being either irreligious (atheist, agnostic or other irreligious life stances) or declaring neither religious nor irreligious identities, and almost equal minorities represented by Christianity (11.7%, almost entirely Catholicism) and other religious identities or beliefs (10.8%). The religious identity of the country has changed drastically since the first half of the 20th century, when more than 90% of the Czechs were Christians. According to the sociologist Jan Spousta, not all the irreligious or neither religiously nor irreligiously identified people are atheists; indeed, since the late 20th century there has been an increasing distancing from both Christian dogmatism and atheism, and at the same time ideas and non-institutional models similar to those of Eastern religions have become widespread through movements started by various gurus, and hermetic and mystical paths. The Christianisation of the Czechs (Bohemians, Moravians and Silesians) occurred in the 9th and 10th century, when they were incorporated into the Catholic Church and abandoned indigenous Slavic paganism. After the Bohemian Reformation which began in the late 14th century, most Czechs became Hussites, that is to say followers of Jan Hus, Petr Chelčický and other regional Proto-Protestant religious reformers. Taborites and Utraquists were the two major Hussite factions. During the Hussite Wars in the early 15th century, the Utraquists sided with the Catholic Church, and following the joint Utraquist—Catholic victory, Utraquism was accepted by the Catholic Church as a legitimate doctrine to be practised in the Kingdom of Bohemia, while all the other Hussite movements were prohibited. Jewish minorities were also present in the country. After the Protestant Reformation in the 16th century, some in Bohemia, especially Sudeten Germans, went with the teachings of Martin Luther (Lutheranism). In the wake of the Reformation, Utraquist Hussites took a renewed increasingly anti-Catholic stance while some of the defeated Hussite factions (notably the Taborites) were revived. The defeat of Bohemians estates by the Habsburg monarchy in the Battle of White Mountain in 1620 affected the religious sentiments of the Czechs, as the Habsburgs endorsed a Counter-Reformation to forcibly reconvert all Czechs, even Utraquist Hussites, back to the Catholic Church. Since the Battle of White Mountain, widespread anti-Catholic sentiment and resistance to the Catholic Church underlay the history of the Czech lands even when the whole population nominally belonged to the Catholic Church, and the Czechs have been historically characterised as