451
Council of Chalcedon concludes
The Fourth Ecumenical Council, which began on October 8, concluded on this day. It defined the two natures of Christ, divine and human, in one person, and issued the Chalcedonian Definition.
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All Events
1096
Peter the Hermit's crusade reaches Constantinople
The People's Crusade, led by Peter the Hermit, arrived at Constantinople on this date. This popular movement preceded the official First Crusade and ended in disaster in Asia Minor.
1555
John Rogers martyred at Smithfield
John Rogers, a Protestant reformer and editor of the Matthew Bible, was burned at the stake in London under Mary I. He was the first English Protestant martyr under the Marian persecutions.
1667
John Milton publishes Paradise Lost
The epic poem Paradise Lost, which retells the biblical story of the Fall of Man, was first published in ten books on this date. It became a cornerstone of Christian literature.
1836
First issue of the Missionary Herald published
The American Board of Commissioners for Foreign Missions began publishing the Missionary Herald on this date. It became a leading periodical reporting on Protestant missionary work worldwide.
1879
Thomas Edison demonstrates electric light
Though not directly religious, Edison's demonstration of the incandescent lamp on this date eventually transformed church lighting and worship practices. It also enabled evening services in many congregations.
1894
First issue of The Christian Science Monitor
The Christian Science Monitor, founded by Mary Baker Eddy, published its first issue on this date. It was established to 'injure no man, but to bless all mankind' and remains a respected news source.
1944
Dietrich Bonhoeffer transferred to Buchenwald
The German theologian and anti-Nazi dissident was transferred to Buchenwald concentration camp on this date. He was later executed at Flossenbürg in April 1945.
1958
First female Anglican priest ordained in Hong Kong
Florence Li Tim-Oi, who had been ordained in 1944 under emergency wartime conditions, was formally recognized as a priest by the Anglican Communion on this date. Her ordination paved the way for women's ordination in many provinces.
1966
Pope Paul VI canonizes 22 Ugandan martyrs
The Ugandan martyrs, killed between 1885 and 1887 for refusing to renounce Christianity, were canonized by Pope Paul VI on this date. They are venerated as saints in the Catholic Church and the Anglican Communion.