Russian President Vladimir Putin was appointed acting prime minister on August 9, 1999, by then president Boris Yeltsin. He has been in office as president or prime minister ever since, a period spanning more than two decades. Here’s what we know about Russian leader Putin.BiographyVladimir Putin was born on October 7, 1952 into a working-class family in Leningrad, now called Saint Petersburg.“I come from an ordinary family, and this is how I lived for a long time, nearly my whole life. I lived…