WHAT HAPPENED ON 15. MAY
Want to find out what all happened on 15. May

Opening of the first private mental health hospital in the United States, the Asylum for the Relief of Persons Deprived of the Use of Their Reason (now Friends Hospital) in Philadelphia, Pennsylvania. (15. May 1817)

Francis Baily observes "Baily's beads" during an annular eclipse. (15. May 1836)

Troops of the Two Sicilies take Palermo and crush the republican government of Sicily (15. May 1849)

The Bloody Island Massacre takes place in Lake County, California, in which a large number of Pomo Indians in Lake County are slaughtered by a regiment of the United States Cavalry, led by Nathaniel Lyon. (15. May 1850)

Opening of the present Royal Opera House in Covent Garden, London. (15. May 1858)

President Abraham Lincoln signs a bill into law creating the United States Bureau of Agriculture. It is later renamed the United States Department of Agriculture. (15. May 1862)

American Civil War: Battle of Resaca, Georgia ends. (15. May 1864)

American Civil War: Battle of New Market, Virginia – students from the Virginia Military Institute fight alongside the Confederate Army to force Union General Franz Sigel out of the Shenandoah Valley. (15. May 1864)

Woman's suffrage: in New York, Susan B. Anthony and Elizabeth Cady Stanton form the National Woman Suffrage Association. (15. May 1869)

Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum Novarum, the beginning of modern Catholic social teaching. (15. May 1891)

The Russian minelayer Amur lays a minefield about 15 miles off Port Arthur and sank Japan's battleships Hatsuse, 15,000 tons, with 496 crew and Yashima. (15. May 1904)

Las Vegas, Nevada, is founded when 110 acres (0.45 km2), in what later would become downtown, are auctioned off. (15. May 1905)

In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up. (15. May 1911)

The Winnipeg General Strike begins. By 11:00 am, almost the whole working population of Winnipeg, Manitoba had walked off the job. (15. May 1919)

Greek invasion of İzmir. During the invasion, the Greek army kills or wounds 350 Turks. Those responsible are punished by the Greek Commander Aristides Stergiades. (15. May 1919)

Mickey Mouse premieres in his first cartoon, Plane Crazy (15. May 1928)

A fire at the Cleveland Clinic in Cleveland, Ohio kills 123. (15. May 1929)

The May 15 Incident: in an attempted Coup d'état, the Prime Minister of Japan Inukai Tsuyoshi is killed. (15. May 1932)

Kārlis Ulmanis establishes an authoritarian government in Latvia. (15. May 1934)

The Moscow Metro is opened to public. (15. May 1935)