In the Neolithic era, how did stone tools change?

What is the historical context of Frederick Douglass on Dred Scott decision

Who was the first to sell around the world

How had the population make-up of the United States changed since 1776 till 1870?

How is the Clean Air Act in 1970 related to the principle established by the Supreme Court in the 1800's?

Some people believe that television coverage of the vietnam war may have

Who wrote the ancient chinese military book known as the art of war?

Which of the following did George Washington urge the nation to do in his Farewell Address

What kind of bills have to start into he house of Representatives

What eighteenth-century mathematician, speaking of the positional principle, said "the idea is so simple that this very simplicity is the reason for our not being sufficiently aware of how much attention it deserves?

Which term refers to markings on a map that run in an east and west direction and measure distance north and south of the equator?