February 23 | EPFL Graph Search

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303 – Roman emperor Diocletian orders the destruction of the Christian church in Nicomedia, beginning eight years of Diocletianic Persecution. 532 – Byzantine emperor Justinian I lays the foundation stone of a new Orthodox Christian basilica in Constantinople – the Hagia Sophia. 628 – Khosrow II, last Sasanian shah of Iran, is overthrown. 705 – Empress Wu Zetian abdicates the throne, restoring the Tang dynasty. 1455 – Traditionally the date of publication of the Gutenberg Bible, the first Western book printed with movable type. 1763 – Berbice slave uprising in Guyana: The first major slave revolt in South America. 1778 – American Revolutionary War: Baron von Steuben arrives at Valley Forge, Pennsylvania, to help train the Continental Army. 1820 – Cato Street Conspiracy: A plot to murder all the British cabinet ministers is exposed and the conspirators arrested. 1836 – Texas Revolution: The Siege of the Alamo (prelude to the Battle of the Alamo) begins in San Antonio, Texas. 1847 – Mexican–American War: Battle of Buena Vista: In Mexico, American troops under future president General Zachary Taylor defeat Mexican General Antonio López de Santa Anna. 1854 – The official independence of the Orange Free State, South Africa is declared. 1861 – President-elect Abraham Lincoln arrives secretly in Washington, D.C., after the thwarting of an alleged assassination plot in Baltimore, Maryland. 1870 – Reconstruction Era: Post-U.S. Civil War military control of Mississippi ends and it is readmitted to the Union. 1883 – Alabama becomes the first U.S. state to enact an anti-trust law. 1885 – Sino-French War: French Army gains an important victory in the Battle of Đồng Đăng in the Tonkin region of Vietnam. 1886 – Charles Martin Hall produced the first samples of aluminium from the electrolysis of aluminium oxide, after several years of intensive work. He was assisted in this project by his older sister, Julia Brainerd Hall. 1887 – The French Riviera is hit by a large earthquake, killing around 2,000.

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February 23

1892

In Samoa, this was the only leap year spanned to 367 days as July 4 repeated. This means that the International Date Line was drawn from the east of the country to go west. January 1 – Ellis Island begins accommodating immigrants to the United States. February 1 – The historic Enterprise Bar and Grill is established in Rico, Colorado. February 27 – Rudolf Diesel applies for a patent, on his compression ignition engine (the Diesel engine). February 29 – St. Petersburg, Florida is incorporated as a town.

1900

As of March 1 (O.S. February 17), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 13 days until February 28 (O.S. February 15), 2100. The year 1900 also marked the Year of the Rat on the Chinese calendar. January 1900 January 2 – U.S. Secretary of State John Hay announces the Open Door Policy, to promote American trade with China. January 3 – The United States Census estimates the country's population to be about 70 million people.