May 12 is the 132nd (one hundred and thirty-second) day of the year in the Gregorian calendar and the 133rd in leap years. There are 233 days left to end the year.
48 a. C .: in the city of Pharsalia (Greece), Julius Caesar notes that he has seen in the sky a "flaming ball of fire" (possibly a meteorite).
254: Stephen I (d. 257) is crowned bishop of Rome ("pope").
1191: Berengaria of Navarre and Richard the Brave marry in England.
1280: In Spain, Alfonso X—in coalition with the Marinid sultan Abu Yusuf and the Banu Ashqilula with their combined troops—attacks Granada.
1328: In Rome, the Bishop of Venice consecrates Antipope Nicholas V.
1513: in Salamanca (Spain) the first stone of the new cathedral is laid.
1521: in Mexico, the head of the Tlaxcalan armies, Xicohténcatl Axayacatzin, who was one of the main opponents of the alliance with Hernán Cortés, dies.
1551: in Lima (Peru) the Royal and Pontifical University of San Marcos, the first university in America, is founded by royal decree issued by Carlos V.
1614: in Villarrobledo (Spain), the Community of Poor Clare Nuns settles in the monastery of San Juan de la Penitencia.
1689: the Treaty of Vienna is signed, between Emperor Leopold I and the United Provinces, to which Denmark, England and Spain adhere.
1742: Governor José Manso de Velasco refounds the city of Talca in the Captaincy General of Chile.
1797: Napoleon Bonaparte conquers Venice in Italy.
1865: in the Russian empire, in today's Finland, the Nokia company is founded.
1875: in Argentina, the longest-running football club in all of America, Club Mercedes, is founded.
1898: on the island of Puerto Rico, the US fleet commanded by Admiral Sampson bombards the city of San Juan.
1912: in Spain, the magazine Blanco y Negro publishes the first color photograph that appeared in the Spanish press.
1922: in the framework of the Moroccan war, the Spanish troops conquer Tazarut.
1925: In the German Republic, Paul von Hindenburg succeeds Friedrich Ebert as president.
1926: Marshal Józef Piłsudski staged a coup in Poland.
1926: Umberto Nobile, Roald Amundsen and Lincoln Ellsworth fly over the North Pole in the airship Norge.
1927: in Nicaragua, Augusto César Sandino begins his fight against US intervention.
1930: Juan Muñoz crosses the South Atlantic Ocean in a seaplane.
1936: in the Spanish Republic, the Cortes approve the election of Manuel Azaña as president.
1936: Italy withdraws from the League of Nations.
1937: George VI is crowned in England.
1940: Germany begins the invasion of France.
1943: in Changshiao (China) the Japanese Expeditionary Army under the command of General Shunroku Hata ends the fourth and last day of the Changshiao Massacre, in which 30,000 men, women and children were raped and killed.
1943: German forces surrender in North Africa.
1948: in the Netherlands, Queen Wilhelmina abdicates in favor of her daughter Juliana.
1949 – In Germany, the Soviet Union lifts the blockade of Berlin.
1956: date of birth of Homer Simpson, the famous fictional protagonist of the American animated series The Simpsons.
1958: on the Enewetak Atoll (Marshall Islands, in the middle of the Pacific Ocean), the United States detonates its 1,370 kt Koa atomic bomb. The new XW-35 ICBM warhead is tested. It is the 126th bomb of the 1,132 that the United States detonated between 1945 and 1992.
1962: in an artificial shaft, 434 meters underground, in the U3am area of the Nevada Atomic Test Site (about 100 km northwest of the city of Las Vegas), at 7:00 (local time) United States detonates its 240th atomic bomb, Aardvark, of 40 kilotons.
1965: In Camagüey, a group from the CIA (Central Intelligence Agency) is captured, which was informing the United States through the