The year of the Compromise to end Reconstruction -Hayes elected

(a)  

The year that WWI begins

(a)  

The year that the U.S. enters WWI

(a)  

Month, day, and year that Germany signed the Armistice ending WWI -

format example July 18, 1963

(a)  

The year of the German blitzkrieg in Poland, starting WWII in Europe

(a)  

The month, day, and year of the attack on Pearl Harbor -

format example July 4, 1775

(a)  

The year in which the Spanish-American War began and ended

(a)  

The year of the Louisiana Purchase

(a)  

The year the French & Indian War ended

(a)  

The year the American Revolution ended with the second Treaty of Paris

(a)  

The time that was considered The Critical Period when the U.S. was governed by the Articles of Confederation.

Format example 1630-1660

(a)  

The decades of the Second Great Awakening and Antebellum reforms

Format example: 1950s-1960s

(a)  

The year the American Civil War started

(a)  

The year the American Civil War ended

(a)  

The year that WWII ended

(a)  

The year that Ronald Reagan was elected

(a)  

The range of years of U.S. involvement in Vietnam

Format example - 1990-1999

(a)  

The decade of the Mexican-American War

format example 1980s

(a)  

The decade of the War of Texas independence

format example: 1950s

(a)