When, where, and by whom were vaccines for polio developed? Which vaccine is most effective, and why?

Who was involved with the brown v broad of Ed

What major political challenges did Western Hemisphere nations face in the 19th century?

What form of early communication was used in the fertile cresent region

What is propaganda? Is propaganda successful? Why or why not?

The beginning of the 20th century saw an incredible oil boom in Texas. This boom was started in 1901 by a well that started gushing oil near Beaumont, Texas. This well was located in the oilfield known as A. Saratoga B. Humble C. Sour Lake D.

Unlike Union soldiers, Confederate soldiers were negatively affected by

What was the most powerful empire

What was Abraham Lincoln's message in the Gettysburg Address? The Civil War was a true test of patriotism. Both democracy and the United States would last. The world would probably not remember what happened at Gettysburg.

The philosophical doctrine that truth can best be found by reasoning and through the analyzing of facts is called rationalism. positivism. atheism. humanism.

How did the economy of the new england colonies differ from the southern colonies?