Moscow (UK // or US //; Russian: Москва (help·info), tr. Moskva; IPA: [mɐˈskva]; see also other names) is the capital and the most populous city and the federal subject of Russia. It is also the largest metropolitan area in Europe, and ranks among the largest urban areas in the world. Moscow is a major political, economic, cultural, religious, financial, educational, and transportation center of Russia and the world, a global city. It is also the seventh largest city proper in the world, a megacity. The population of Moscow (as of 1 September 2009) is 10,535,100.
It is located by the Moskva River in the Central Federal District, in the European part of Russia. Moscow sits on the junction of three geological platforms. Historically, it was the capital of the former Soviet Union, Russian Empire, Tsardom of Russia and the Grand Duchy of Moscow. It is the site of the Moscow Kremlin, one of the World Heritage Sites in the city, which serves as the residence of the President of Russia. The Russian parliament (the State Duma and the Federation Council) and the Government of Russia also sit in Moscow.
Moscow is a major economic centre. It is home to many scientific and educational institutions, as well as numerous sport facilities. It possesses a complex transport system that includes four international airports, nine railroad terminals, and the world's second busiest (after Tokyo) metro system which is famous for its architecture and artwork. Its metro is the busiest single-operator subway in the world.
Over time, the city has earned a variety of nicknames, most referring to its pre-eminent status in the nation: The Third Rome (Третий Рим), Whitestone (Белокаменная), The First Throne (Первопрестольная), The Forty Forties (Сорок Сороков).
A person from Moscow is called a Muscovite in English or Moskvich in Russian.
Saint Dmitry Ivanovich Donskoy (Russian: Дми́трий Ива́нович Донско́й,also known as Dimitrii), or Dmitry of the Don, sometimes referred to as Dmitry I (12 October 1350, Moscow – 19 May 1389, Moscow), son of Ivan II the Meek of Moscow (1326 – 1359), reigned as the Prince of Moscow from 1359 and Grand Prince of Vladimir from 1363 to his death. He was the first prince of Moscow to openly challenge Mongol authority in Russia. His nickname, Donskoy (i.e., "of the Don"), alludes to his great victory against the Tatars in the Battle of Kulikovo (1380) which took place on the Don River. He is venerated as a Saint in the Orthodox Church with his feast day on May 19.