451
Council of Chalcedon begins
The Council of Chalcedon, an ecumenical council, convened on this date. It defined the two natures of Christ and issued the Chalcedonian Definition, a cornerstone of Christian theology.
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All Events
840
Death of Anskar, missionary to Scandinavia
Anskar, known as the Apostle of the North, died on this date. He was a Benedictine monk and archbishop who pioneered Christian missions in Denmark and Sweden.
1178
Canonization of St. Thomas Becket
Thomas Becket, the murdered Archbishop of Canterbury, was canonized by Pope Alexander III. His shrine became a major pilgrimage site in medieval England.
1248
Consecration of Cologne Cathedral choir
The choir of Cologne Cathedral, a masterpiece of Gothic architecture, was consecrated. The cathedral became a major center of Christian worship and pilgrimage.
1549
Thomas Cranmer's Book of Common Prayer authorized
The Act of Uniformity was passed, making the Book of Common Prayer the sole legal form of worship in England. It shaped Anglican liturgy for centuries.
1631
First edition of the King James Bible printed in Scotland
This edition, known as the 'Wicked Bible' due to a misprint, was printed in Edinburgh. It became a notable artifact in Bible printing history.
1782
Congress approves the Aitken Bible
The Continental Congress endorsed the first English-language Bible printed in America, the Aitken Bible. It was the only Bible ever authorized by Congress.
1840
Birth of John Henry Newman's conversion era
Newman, a leading Anglican theologian, published Tract 90, which sparked controversy and eventually led to his conversion to Roman Catholicism in 1845.
1861
Founding of the Salvation Army precursor
William Booth began his Christian Mission in London, which later became the Salvation Army. It focused on evangelism and social aid to the poor.
1963
Pope Paul VI elected
Giovanni Battista Montini was elected pope on this date, taking the name Paul VI. He led the Second Vatican Council to its conclusion and reformed the liturgy.