WHAT HAPPENED ON 1. APRIL
Want to find out what all happened on 1. April

Emperor Diocletian elevates his general Maximian to co-emperor with the rank of Augustus and gives him control over the Western regions of the Roman Empire. (1. April 286)

Crown Prince Jin Chengdi, age 4, succeeds his father Jin Mingdi as emperor of the Eastern Jin Dynasty. (1. April 325)

Majorian is acclaimed emperor by the Roman army. (1. April 457)

Byzantine Emperor Justin I names his nephew Justinian I as co-ruler and successor to the throne. (1. April 527)

The daughter of Emperor Xiaoming of Northern Wei was made the "Emperor" as a male heir of the late emperor by Empress Dowager Hu, deposed and replaced by Yuan Zhao the next day; she was the first female monarch in the History of China, but not widely recognised. (1. April 528)

Robert Winchelsey leaves England for Rome, to be consecrated as Archbishop of Canterbury. (1. April 1293)

Berwick-upon-Tweed is captured by the Scottish from England. (1. April 1318)

Niels Ebbesen kills Gerhard III of Holstein in his bedroom, ending the 1332-1340 interregnum in Denmark. (1. April 1340)

Potosí is founded after the discovery of major silver deposits in the area. (1. April 1545)

In the Eighty Years' War, the Watergeuzen capture Brielle from the Spaniards, gaining the first foothold on land for what would become the Dutch Republic. (1. April 1572)

A combined Spanish and Portuguese fleet of 52 ships commences the recapture of Bahia from the Dutch during the Dutch–Portuguese War. (1. April 1625)

In New York City, the United States House of Representatives holds its first quorum and elects Frederick Muhlenberg of Pennsylvania as its first House Speaker. (1. April 1789)

Samuel Morey patents the internal combustion engine. (1. April 1826)

The Convention of 1833, a political gathering of settlers in Mexican Texas to help draft a series of petitions to the Mexican government, begins in San Felipe de Austin (1. April 1833)

Charles Dickens' novel Hard Times begins serialisation in his magazine, Household Words. (1. April 1854)

American Civil War: Battle of Five Forks. (1. April 1865)

Singapore becomes a British crown colony. (1. April 1867)

The first stage of the Brill Tramway opens. (1. April 1871)

The British steamer RMS Atlantic sinks off Nova Scotia, killing 547. (1. April 1873)

Mumbai Fire Brigade is established. (1. April 1887)