Answer:
November 9th 1989
Step-by-step explanation:
The Berlin Wall felt in November 9th ,1989 in a day that a mass protest took the whole world as the sign of the fall of communism.
The wall was constructed by German Democratic Republic, a communist state aligned with the USSR an even that triggered the end of the Cold war.
Demolition of the wall oficially ended in 1992. The world divided a country and was a sign of the larger Iron Curtain that ideologically divided countries into West capitalist and Eastern Europe with a socialist system.
The Berlin Wall separated entire families who often faced harships to rejoin.