What brought many tribes together in the Zulu nation (think about when the story went back to Shaka's birth)?

Why have the aztec ruins in mexico city not been dug up?

The structure of the federal bureaucracy is well-known as being large and complex. which of the following is not part of the federal bureaucracy?

Central american countries are important agricultural producers. each year, the united states imports about five billion dollars’ worth of a. bananas b. cacao c. mangoes d. coffee