How many years did it take for thomas edison to invent the light bulb?

Why was justinian reform of the law so important

The influential pamphlet, common sense, was authored by:

What can art tell us about the history of a place or culture?

Why was the invention of the mechanical reaper important? A.) The reaper separated cotton fibers from cotton seed much faster than the manual method used earlier. B.) The reaper made it possible to communicate very quickly across a wire. C.

Japan felt disrespected by the treaty of Portsmouth provisions, because

Why was the outcome of the french and indian war important for American colonists?

Which were the two major countries involved in the cold war era space race?

Why did Southern senators initially block the organization of the Kansas and Nebraska territories? A. They thought the railroad that would be built there would only benefit the North. B.

During Eisenhower's presidency, what is happening in Asia and Africa?

Why did people start using money for transactions instead of bartering? O Gold lost its value in Mesopotamia and Egypt after 2000 B. C. O Priests declared that bartering was an offense against the gods.