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.
By Klaus Wiegrefe. Historians have long argued over whether East German leader Walter Ulbricht or his Soviet counterpart Nikita Khrushchev was ultimately responsible for the construction of the Berlin Wall.A newly discovered Russian document from August 1961 provides some answers.hrushchev wanted to convince the East German population that the wall being built would protect them from Western spies, and he said that the Germans would understand. But even Khrushchev didn't appear to totally believe his own propaganda.