It was around 16.5 million
East Germany's population in 1989 was between 16.1 million and 16.6 million people depending on whose estimates you follow.
No, the western part of Germany was larger than the part of East Germany.
The reunification of Germany in 1989 was called die Wiedervereinigung.
West and East Germany rejoined into Germany.
The causes of the east german revolution in 1989 was Gorbachev and the churches: Gorbachev's glasnost came to East Germany.
Midnight on 9 November 1989
Germany
Ever since the reunification of West Germany and East Germany in 1989, there has been only one Germany.
1989 saw the collapse of communist rule in East Germany and talks started immediately on the reunification of Germany which happened in 1990.
1989
A major change in Western Europe in 1945-1989 was the post war rebuilding of Germany. Germany was divided into East and West Germany.
It was built by the Russians to keep the population of East Germany in East Germany and to separate it from the Western sectors.