I had that question its number 2...
answer is 1810
It would be the "A. Pawnee" that was the Caddoan tribe that settled along the rivers in eastern Oklahoma, due mostly to the fact that these rivers greatly helped to irrigate the land for farming.
The 3 great empires were the Mughal, Ottoman, and the Safavid empire.
Polk sent orders to the U.S. Navy in the Pacific to seize San Francisco Bay and other California ports in the event of war with Mexico in 1845 as part of his California strategy.
The burning of the American flag was determined a form of symbolic speech, protected under the First Amendment to the United States Constitution in the Bill of Rights.