Today in 1911, 113 years ago: The RMS Titanic is launched in Belfast, Northern Ireland.

#OnThisDay

Today in 1991, 33 years ago: in the Republic of Georgia, Zviad Gamsakhurdia becomes the first elected president in the post-Soviet era.

#OnThisDay

Today in 1936, 88 years ago: in Barcelona (Spain), the Generalitat of Catalonia forms a new Government chaired by Lluís Companys.

#OnThisDay

Today in 1896, 128 years ago: Nicholas II is crowned as the last Tsar of Imperial Russia.

#OnThisDay

Today in 1933, 91 years ago: in Germany, the Nazi Party introduces a law to legalize eugenic sterilization.

#OnThisDay

Today in 1972, 52 years ago: the Soviet Union and the United States sign the ABM treaty (Anti-Ballistic Missile Treaty).

#OnThisDay

Today in 1986, 38 years ago: The European Community adopts the European flag.

#OnThisDay

Today in 1954, 70 years ago: in Paraguay, General Alfredo Stroessner stages a coup d 'état and is appointed President of the Republic.

#OnThisDay

Today in 1931, 93 years ago: in Portugal, the government stifles the revolution promoted on the island of Madeira by political deportees.

#OnThisDay

Today in 1976, 48 years ago: in Darmstadt (Germany), thanks to the UNILAC particle accelerator, owned by the GSI, it is possible for the first time to accelerate a heavy ion (U-238) up to 6.7 MeV.

#OnThisDay

Today in 1894, 130 years ago: in Madrid (Spain) the current building of the Royal Spanish Academy is inaugurated.

#OnThisDay

Today in 1822, 202 years ago: The Florida Territory is created in the United States.

#OnThisDay

Today in 2009, 15 years ago: The dam forming Situ Gintung, an artificial lake in Indonesia, fails, killing at least 99 people.

#OnThisDay

Today in 1973, 51 years ago: in England, the progressive rock band Pink Floyd publishes The Dark Side of the Moon.

#OnThisDay

Today in 2006, 18 years ago: Twitter, the microblogging website, was founded in San Francisco (California).

#OnThisDay

Today in 1933, 91 years ago: in Florida (USA),), Italian Giuseppe Zangara is executed in the electric chair for murdering Anton Cermak in an assassination attempt against President Franklin D. Roosevelt.

#OnThisDay

Today in 1854, 170 years ago: the United States Republican Party was founded in the city of Ripon (Wisconsin).

#OnThisDay

Today in 1980, 44 years ago: Mount St. Helens awoke after 100 years of inactivity with a quake of magnitude 4.1 on the Richter scale.

#OnThisDay

Today in 1944, 80 years ago: Mount Vesuvius in Italy erupts, killing 26 people, causing thousands to flee their homes, and destroying dozens of Allied bombers.

#OnThisDay

Today in 1865, 159 years ago: American Civil War: The Congress of the Confederate States adjourns for the last time.

#OnThisDay