How did the Olmec civilization's use of slash - and-burn agriculture affect the environment?

1st emperor of the Holy Roman Empire

Why was the Cuban missile crisis cocidered an especially dangerous situation?

How has the role of children in society changed from colonial times to the present? (Hint: Do children still do the same things today as they did in colonial times? What is the same? What is different?).

What countries comprised the Triple Entente? Great Britain, France, Spain Germany, Austria-Hungary, Italy France, Great Britain, Russia Russia, France, Germany

Use the following terms in sentences about the civil war? a. entrench b. flank

Why did early peoplemigrate from asia to the americas

After the civil war ended, how was the north affected ecomonically?

How does thomas paine feel about the american revolution?

What continent did the first humans appear

Why was rosa parks influential