Vladimir Putin was born in Leningrad (now St. Petersburg), Russia, on October 7, 1952. in 1975, he began his career in the KGB as an intelligence officer. Following the collapse of the Soviet Union in 1991, Putin retired from the KGB and returned to Leningrad as a supporter of Anatoly Sobchak, who was a liberal politician. After Sobchak won election as mayor of Leningrad in 1991, Putin became his head of external relations. Later on in 1994, Putin became Sobchak's first deputy mayor. This became the start of his career as a politician. After Sobchak's defeat in 1996, Putin resigned his post and moved to Moscow, Russia. Putin was appointed deputy head of management under Boris Yeltsin's, the first president of the Russian Federation, presidential administration in 1998. Putin moved up positions so quickly, by 1999, Yeltsin dismissed his then-prime minister, along with his cabinet, and promoted Putin in his place. Later that same year, Boris Yeltsin resigned as president of Russia and appointed Putin acting president until official elections were held (in early 2000). Putin was re-elected to the presidency in 2004. On March 4, 2012, Vladimir Putin was re-elected to the presidency, and he was inaugurated to his third term as Russia's president on May 7, 2012.