Why did the Aztecs allow some conquered people to govern themselves with relatively little interference?

How did the plantation system and the lack of indentured servants affect the status of Africans in America? What states split their electoral votes between McKinley and Bryan? What is bohemian ancestry? What US President had the most nominees rejected by the Senate? Who said no taxation without presentation? What is the meaning of hypocondriac? Which of these is the amount of income individuals have after they save and pay their taxes? When the American revolutionary war ended the predominant type of government in Europe was? How did Roger B Taney get to be supreme court justice? What did the rich Virginians allow poor whites to do to keep relations friendly? Where did marxism originate? What is the value of a liberty 1904 silver dollar? Why are we so lucky to be in Canada? Who represented GA in the constitutional convention? How did the great awakening affect people in the American colonies? True or false - Under the US Constitution the federal government has four main branches? What branch of government is responsible for enforcing laws? What two countries were unified in the 1956 election? Why didn't the north west territories from joining confederation? Who was the viking explorer?