December 21 | EPFL Graph Search

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AD 69 – The Roman Senate declares Vespasian emperor of Rome, the last in the Year of the Four Emperors. 1124 – Pope Honorius II is consecrated, having been elected after the controversial dethroning of Pope Celestine II. 1140 – After a siege of several weeks, the city of Weinsberg and its castle surrender to Conrad III of Germany. 1237 – The city of Ryazan is sacked by the Mongol army of Batu Khan. 1361 – The Battle of Linuesa is fought in the context of the Spanish Reconquista between the forces of the Emirate of Granada and the combined army of the Kingdom of Castile and of Jaén resulting in a Castilian victory. 1598 – Battle of Curalaba: The revolting Mapuche, led by cacique Pelentaru, inflict a major defeat on Spanish troops in southern Chile. 1620 – Plymouth Colony: William Bradford and the Mayflower Pilgrims land near what is now known as Plymouth Rock in Plymouth, Massachusetts. 1826 – American settlers in Nacogdoches, Mexican Texas, declare their independence, starting the Fredonian Rebellion. 1832 – Egyptian–Ottoman War: Egyptian forces decisively defeat Ottoman troops at the Battle of Konya. 1844 – The Rochdale Society of Equitable Pioneers commences business at its cooperative in Rochdale, England, starting the Cooperative movement. 1861 – Medal of Honor: Public Resolution 82, containing a provision for a Navy Medal of Valor, is signed into law by President Abraham Lincoln. 1872 – Challenger expedition: , commanded by Captain George Nares, sails from Portsmouth, England. 1879 – World premiere of Henrik Ibsen's A Doll's House at the Royal Theatre in Copenhagen, Denmark. 1883 – The Royal Canadian Dragoons and The Royal Canadian Regiment, the first Permanent Force cavalry and infantry regiments of the Canadian Army, are formed. 1907 – The Chilean Army commits a massacre of at least 2,000 striking saltpeter miners in Iquique, Chile. 1910 – An underground explosion at the Hulton Bank Colliery No. 3 Pit in Over Hulton, Westhoughton, England, kills 344 miners.

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Explores extremal limit theorems, statistical analysis, and applications of extremal processes in various fields, focusing on modeling extreme events and fitting suitable models.

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.

December 21

1891

January 1 A strike of 500 Hungarian steel workers occurs; 3,000 men are out of work as a consequence. Germany takes formal possession of its new African territories. January 4 – The Earl of Zetland issues a declaration regarding the famine in the western counties of Ireland. January 5 The Australian shearers' strike, that leads indirectly to the foundation of the Australian Labor Party, begins. A fight between the United States and Indians breaks out near Pine Ridge agency.