Answer:
The fall of the Berlin Wall (German: Mauerfall) on 9 November 1989 was a pivotal event in world history which marked the falling of the Iron Curtain and the start of the fall of communism in Eastern and Central Europe. The fall of the inner German border took place shortly afterwards.
Explanation:
He was a son of the dynasty's founder Emperor Gaozu of Tang (Li Yuan), and in the intense rivalry developed between his older brothers Li Jiancheng the Crown Prince and Li Shimin.
The modern political party system in the U.S. is dominated by the Democratic Party and the Republican Party. These two parties have won every United States presidential election since 1852 and have controlled the United States Congress to some extent since at least 1856.