Please check back often as this is regularly updated. 1  Rim Exit Devices. 2  Rim Device: This type is used on single doors or pairs of doors that have a vertical mullion (either removable or fixed) in between the doors. The strike plate is surface mounted on the frame (or mullion).
Mikhail Gorbachev was the last General Secretary of the Soviet Union. He brought about massive economic, social, and political changes and helped bring an end to both the Soviet Union and the Cold War.
Mikhail Gorbachev's policies of glasnost and perestroika had profound and unintended effects on the Soviet Union. In fact, many historians suggest these reforms led directly to the fall of communism and the breakup of the Soviet Union.