"95 тезисов" refers to the "95 Theses," a document written by Martin Luther in 1517. It criticized the practices of the Catholic Church, particularly the sale of indulgences, which were payments made to reduce punishment for sins. Luther's theses sparked the Protestant Reformation, a movement that sought to reform the church and led to the establishment of various Protestant denominations. The 95 Theses were nailed to the door of the Wittenberg Castle Church in Germany, symbolizing a call for debate and reform. This act is often seen as the beginning of a significant shift in Christianity, challenging the authority of the Pope and promoting the idea of salvation through faith alone.