I am going to say 1 because it started 2.5 billion years ago and is still hapinung today
Democracy,socialism,and Nationalism
The California Gold Rush brought some 300,000 people to California from the rest of the United States. Hope this helps!
George Washington's early military career (1754-1758)—during the Seven Years' War—was not uniformly successful. In his first battle, he and his men were ambushed and forced to surrender Fort Necessity on the Pennsylvania frontier. ... Washington led the surviving British and Colonial soldiers on a successful retreat.