Simplify the following text for a Grade 6 native English-speaking person.
Original: Yury Mikhaylovich Luzhkov ( born 21 September 1936 ) is a Russian politician who was the Mayor of Moscow from 1992 to 2010 .
Simplified: Yury Mikhailovitsch Luzhkov born September 21 , 1936 in Moscow . He has been the mayor of Moscow from 1992 , when another person quit the job since he could not handle the problems that came with it , until 2010 .