History of Saint Petersburg
Founded by Tsar Peter the Great on 27 May 1703. It became capital of the Russian Empire for more than two hundred years (1712–1728, 1732–1918). St. Petersburg ceased being the capital in 1918 after the Russian Revolution of 1917.
St. Petersburg paradox
The paradox takes its name from its resolution by Daniel Bernoulli, one-time resident of the eponymous Russian city, who published his arguments in the "Commentaries of the Imperial Academy of Science of Saint Petersburg" . However, the problem was invented by Daniel's cousin, Nicolas Bernoulli, who first stated it in a letter to Pierre Raymond de Montmort on September 9, 1713 .