Who performed the first open heart surgery

How many states had to improve the articles of confederation

The middle colonies thrived because

What led to the beginning of world war 11 in Europe and Germany's early successes

Which leader negotiated a trade treaty between the US and Great Britain on behalf of George Washington? A) John Jay B) Thomas Jefferson C) Alexander Hamilton D) Napoleon Bonaparte

What were the total number of troops in vietnam at the end of the war in 1975?

Who were the vikings and how did they raid europe

Which of the following goal was central to Johnson's vision of the great society

What did the Treaty of Greenville accomplish?

Explain how the events in Spain led to Mexican independence

Why was the south affected more than the north during the civil war how were they affected