Mr Putin is handed over the presidential power.
Vladimir Vladimirovich Putin studied law at State University in St Petersburg, then known as Leningrad.
After graduating in 1975, he worked in the KGB's foreign intelligence service, mainly in Germany.
He left the KGB in 1990 and became an ally of liberal Anatoly Sobchak, the mayor of St Petersburg, whom he met during his study.
He first became Mr Sobchak's head of external relations and then served as deputy mayor from March 1994.
When Mr Sobchak lost power in 1996 it was another liberal, deputy Prime Minister Anatoly Chubais, who recommended him for a job in the presidential administration.
There he rose to be deputy chief-of-staff before being asked, in July 1998, to take charge of one of Russia's new security services, the Federal Security Bureau (FSB), replacing Nikolai Kovalyov.
Subsequently, President Boris Yeltsin appointed him as head of the powerful Security Council.
After Boris Yeltsin sacked Sergei Stepashin in August 1999, he became Russia's prime minister.
On the last day of the 20th century, Boris Yeltsin resigned and appointed him as acting president.
Presidential elections were held on March 26, 2000.
Putin received 52.94 percent of all votes.
The inauguration took place on May 7, 2000.