1918
Canonization of Saint Onesimus
The Roman Catholic Church canonized Saint Onesimus, a former slave who became a bishop and is believed to have been converted to Christianity by Saint Paul.
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All Events
1546
Council of Trent Begins
The Council of Trent, a key event in the Catholic Reformation, convened in the city of Trent to address the Protestant Reformation and clarify Catholic doctrine.
1923
Founding of the Jehovah's Witnesses
The Jehovah's Witnesses, a Christian denomination known for their door-to-door evangelism and distinctive beliefs, was founded by Charles Taze Russell.
1871
Papal Infallibility Dogma Proclaimed
The First Vatican Council proclaimed the doctrine of papal infallibility, which states that the Pope, when speaking ex cathedra, is infallible on matters of faith and morals.
1600
Martyrdom of Jacopo Zattera
Jacopo Zattera, an Italian Catholic priest, was executed for his faith during the Tokugawa shogunate's persecution of Christians in Japan.