19th April

The American Revolutionary War, also known as the Revolutionary War or American War of Independence or simply the American Revolution, was the armed conflict that comprised the final eight years of…

The Duchy of Warsaw was a French client state established by Napoleon Bonaparte in 1807, during the Napoleonic Wars. It initially comprised the ethnically Polish lands ceded to France by Prussia…

World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many engaging in total war…

The siege of Boston was the opening phase of the American Revolutionary War. In the siege, American patriot militia led by newly-installed Continental Army commander George Washington prevented the…

The Treaty of Frankfurt, also known as the Truce of Frankfurt, was a formal agreement of peace between Charles V, Holy Roman Emperor and Protestants on 19 April 1539. The parties met at…

The Army of the Republic of Vietnam composed the ground forces of the South Vietnamese military from its inception in 1955 to the fall of Saigon on 30 April 1975. Its predecessor was the ground…

The American Civil War was a civil war in the United States between the Union and the Confederacy, which was formed in 1861 by states that had seceded from the Union to preserve slavery in the United…

The Warsaw Ghetto Uprising was an uprising by the Jewish resistance in the Warsaw Ghetto in German-occupied Poland during World War II to oppose Nazi Germany's final effort to transport the remaining…

The Kishinev pogrom or Kishinev massacre was an anti-Jewish riot that took place in Kishinev, then the capital of the Bessarabia Governorate in the Russian Empire, on 19–21 April [O.S. 6–8 April]…

Augustin-Jean Fresnel was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, fully supplanting Newton's corpuscular…

On April 19, 1995, American anti-government extremist Timothy McVeigh, assisted by Terry Nichols, detonated a makeshift bomb stored in a rental truck parked in front of the Alfred P. Murrah Federal…

John Adams was a Founding Father and the second president of the United States from 1797 to 1801. Before his presidency, he was a leader of the American Revolution that achieved independence from…

Benjamin Disraeli, 1st Earl of Beaconsfield, was a British statesman, Conservative politician and writer who twice served as Prime Minister of the United Kingdom. He played a…

Charles Sanders Peirce was an American scientist, mathematician, logician, and philosopher who is sometimes known as "the father of pragmatism". According to philosopher Paul…

Nicholas Saunderson was a blind English scientist and mathematician. According to one historian of statistics, he may have been the earliest discoverer of Bayes' theorem. He…

Benjamin Rush was an American revolutionary, a Founding Father of the United States and signatory to the U.S. Declaration of Independence, and a civic leader in Philadelphia,…

Ronald Allen Hamilton, also known as "Patch the Pirate", was an American Christian musician, composer, preacher, and radio personality. He was president and owner of Majesty…