First Council of Nicaea: Did you mean...?

A 15th century CE illustration by Jean Colombe of the Council of Clermont of November 1095 CE where Pope Urban II (r. 1088-1099 CE) famously called for the First Crusade (1095-1102 CE). (National Library, Paris)

The First Punic War (264-241 BCE) was fought between Carthage and Rome largely over control of Sicily. The war was fought on the island, at sea, and in north Africa. Both sides enjoyed victories and suffered near-catastrophic defeats. The...

The First Agricultural Revolution, beginning c. 12-20,000 years ago, was characterized by the emergence of different agricultural systems in different parts of the world, whose common trait was the use of native species. Although agriculture...

The First Anglo-Sikh War (1845-6) was a short and bloody conflict won by the British East India Company (EIC) against the Sikh Empire. The EIC was keen to expand into northern India, but the Sikh army was a well-trained, well-equipped, and...

An image showing the Council of Chalcedon painted by Vasily Surikov in 1876. Oil on Canvas. The Council of Chalcedon was called in 451 by the Roman Emperor Marcian to settle debates that had begun at two earlier meetings in Ephesus (431...

The First Anglo-Afghan War (1838-42) was fought between the British East India Company (EIC) and, the Emirate of Afghanistan, the ultimate victor. The British were keen to control Afghanistan as they feared Russian expansion into South Asia...

The First Triumvirate of ancient Rome was an uneasy alliance between the three titans Julius Caesar, Pompey, and Crassus which, from 60 BCE until 53 BCE, dominated the politics of the Roman Republic. Alliances have always been a part of history...

The First Fitna (656-661 CE) was the first civil war of the Islamic Empire fought between the fourth Rashidun Caliph, Ali ibn Abi Talib (656-661 CE), and the governor of Syria, Muawiya (later Muawiya I; r. 661-680 CE). Deep fissures divided...

Cardinal Ercole Gonzaga Presiding at the Council of Trent, painting by Elia Naurizio (1589-1657). Diocesan Museum Francesco Gonzaga, Mantua.

Council of Trent (1545-1563), fresco by Pasquale Cati, 1588. Basilica of Santa Maria in Trastevere.