Former Soviet leader Mikhail Gorbachev has died at 91

 Soviet pioneer Mikhail Gorbachev, who assumed a focal part in finishing the Cold War

Cold War, passed on Tuesday at 91 years old.

Russian media detailed his demise, refering to the clinic 

that was regarding him as saying he passed on from a "serious

Gorbachev's brand name arrangements of glasnost and perestroika helped open up 

 Soviet economy and change society in the last part of the 1980s

 its past and draw in with Western pioneers on arms control.