WHAT HAPPENED ON 31. MARCH
Want to find out what all happened on 31. March

After divorcing his wife Minervina, Constantine marries Fausta, the daughter of the retired Roman Emperor Maximian. (31. March 307)

Battle of the Trench: Muhammad successfully withstands a siege for 27 days at Medina (Saudi Arabia) by Meccan forces under Abu Sufyan. (31. March 627)

Bernard of Clairvaux preaches his famous sermon in a field at Vézelay, urging the necessity of a Second Crusade. Louis VII is present, and joins the Crusade. (31. March 1146)

Queen Isabella of Castille issues the Alhambra decree, ordering her 150,000 Jewish and Muslim subjects to convert to Christianity or face expulsion. (31. March 1492)

A sermon on "The Nature of the Kingdom of Christ" by Benjamin Hoadly, the Bishop of Bangor, provokes the Bangorian Controversy. (31. March 1717)

American Revolutionary War: The Kingdom of Great Britain orders the port of Boston, Massachusetts closed pursuant to the Boston Port Act. (31. March 1774)

The massacre of the population of the Greek island of Chios by soldiers of the Ottoman Empire following an attempted rebellion, depicted by the French artist Eugène Delacroix. (31. March 1822)

Commodore Matthew Perry signs the Treaty of Kanagawa with the Japanese government, opening the ports of Shimoda and Hakodate to American trade. (31. March 1854)

The Spanish Navy bombs the harbor of Valparaíso, Chile. (31. March 1866)

The family with samurai antecedents that responded to the Saigō army in Ōita Nakatsu, rebels. (31. March 1877)

The United Kingdom establishes a protectorate over Bechuanaland. (31. March 1885)

The Eiffel Tower is officially opened. (31. March 1889)

Malolos, capital of the First Philippine Republic, was captured by American forces. (31. March 1899)

1901 Black Sea earthquake (31. March 1901)

Richard Pearse allegedly makes a powered flight in an early aircraft. (31. March 1903)

The Intercollegiate Athletic Association of the United States (later the National Collegiate Athletic Association) is established to set rules for college sports in the United States. (31. March 1906)

Serbia accepts Austrian control over Bosnia and Herzegovina. (31. March 1909)

Construction of the ill fated RMS Titanic begins. (31. March 1909)

Six North Staffordshire Pottery towns federate to form modern Stoke-on-Trent. (31. March 1910)

The Vienna Concert Society rioted during a performance of mordernist music by Arnold Schoenberg, Alban Berg, Alexander von Zemlinsky, and Anton von Webern, causing a premature end to the concert due to violence. This concert became known as the Skandalkonzert. (31. March 1913)