1179
Third Lateran Council convenes
Pope Alexander III convened the Third Lateran Council, which addressed papal elections and clerical discipline. It also condemned the Waldensians and Albigensians as heretics.
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All Events
1512
Sistine Chapel ceiling unveiled
Michelangelo's frescoes on the Sistine Chapel ceiling were first shown to the public on this day. Although not a religious event per se, it became a cornerstone of Christian sacred art.
1549
Book of Common Prayer authorized
The Act of Uniformity made the first Book of Common Prayer the sole legal form of worship in England. This was a key step in the English Reformation under Edward VI.
1612
First Baptist church in England founded
Thomas Helwys established the first Baptist church on English soil in Spitalfields, London. It championed religious liberty and believer's baptism.
1755
Lisbon earthquake prompts theological reflection
The devastating Lisbon earthquake on All Saints' Day killed thousands in churches. It sparked widespread theological debate about divine providence and the problem of evil.
1894
Nicholas II becomes Tsar of Russia
Nicholas II ascended the Russian throne, later becoming a defender of the Russian Orthodox Church. He was canonized as a passion-bearer by the Russian Orthodox Church in 2000.
1950
Pope Pius XII defines Assumption dogma
On All Saints' Day, Pope Pius XII defined the dogma of the Assumption of the Virgin Mary, declaring that she was taken body and soul into heavenly glory. This was the first infallible definition since Vatican I.
1981
Mother Teresa opens first home in New York
Mother Teresa opened her first Missionaries of Charity home in New York City. This expanded her order's work to the United States, serving the poorest of the poor.
1994
Pope John Paul II issues 'Tertio Millennio Adveniente'
The Pope's apostolic letter prepared the Church for the Great Jubilee of the Year 2000. It called for a renewed commitment to evangelization and ecumenism.
2007
Anglican primates meet in New Orleans
Anglican leaders gathered to address the crisis over homosexuality and the authority of Scripture. The meeting sought to maintain communion despite deep disagreements.