WHAT HAPPENED ON 9. APRIL
Want to find out what all happened on 9. April

Byzantine Emperor Basiliscus issues a circular letter (Enkyklikon) to the bishops of his empire, supporting the Monophysite christological position. (9. April 475)

Siege of Rome: The Byzantine general Belisarius receives his promised reinforcements, 1,600 cavalry, mostly of Hunnic or Slavic origin and expert bowmen. He starts, despite of shortages, raids against the Gothic camps and Vitiges is forced into a stalemate. (9. April 537)

Battle of Liegnitz: Mongol forces defeat the Polish and German armies. (9. April 1241)

Despite being outnumbered 16 to 1, forces of the Old Swiss Confederacy are victorious over the Archduchy of Austria in the Battle of Näfels. (9. April 1388)

Henry V is crowned King of England. (9. April 1413)

Christopher of Bavaria is appointed King of Denmark. (9. April 1440)

The Treaty of Lodi is signed, establishing a balance of power among northern Italian city-states for almost 50 years. (9. April 1454)

St John's College, Cambridge, England, founded by Lady Margaret Beaufort, receives its charter. (9. April 1511)

The expedition organised by Sir Walter Raleigh departs England for Roanoke Island (now in North Carolina) to establish the Roanoke Colony. (9. April 1585)

Eighty Years' War: Spain and the Dutch Republic sign the Treaty of Antwerp to initiate twelve years of truce. (9. April 1609)

Robert Cavelier de La Salle discovers the mouth of the Mississippi River, claims it for France and names it Louisiana. (9. April 1682)

American War of Independence: Battle of the Saintes begins. (9. April 1782)

On his phonautograph machine, Édouard-Léon Scott de Martinville makes the oldest known recording of an audible human voice. (9. April 1860)

American Civil War: Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Courthouse, Virginia, effectively ending the war. (9. April 1865)

Alaska Purchase: Passing by a single vote, the United States Senate ratifies a treaty with Russia for the purchase of Alaska. (9. April 1867)

The U.S. Congress passes the Payne–Aldrich Tariff Act. (9. April 1909)

Mexican Revolution: One of the world's first naval/air skirmishes takes place off the coast of western Mexico. (9. April 1914)

World War I: The Battle of Verdun – German forces launch their third offensive of the battle. (9. April 1916)

World War I: The Battle of Arras – the battle begins with Canadian Corps executing a massive assault on Vimy Ridge. (9. April 1917)

World War I: The Battle of the Lys – the Portuguese Expeditionary Corps is crushed by the German forces during what is called the Spring Offensive on the Belgian region of Flanders. (9. April 1918)