What was the iron curtain and what was on each side

The Iron Curtain was the name for the boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991. The term symbolizes the efforts by the Soviet Union to block itself and its satellite states from open contact with the West and non-Soviet-controlled areas.

during the ming dynasty

the manhattan project's indispensable man