Why did people migrate away from the sahel around 4,000 years ago

Review the following types of government and match the style to it's definition type of dictatorship in which one person has complete control of the government government in which the people elect representatives to make government decisions for them government in which all people directly participate in government decisions government power is shared between a national government and regional (state) governments government has almost complete control; makes most decisions government power is centralized in regional (state) governments and they work together in a loose national government 1. authoritarian government 2. autocracy 3. confederal government 4. direct democracy 5. federal government 6. representative democracy

In 1819, what did the united states obtain from spain for $5 million?

What were some of the most important native items adopted by europeans ? what impact did they have on european life ?