Why was 1989 a pivotal year in world history?(1 point)

Responses

Putin rose to power in Russia and took over.
Putin rose to power in Russia and took over.

Vietnam invaded and took over Cambodia.
Vietnam invaded and took over Cambodia.

The Tiananmen Square protests were successful.
The Tiananmen Square protests were successful.

Communism started to decline and the Berlin Wall came down.

Communism started to decline and the Berlin Wall came down.