CAN SOMEONE HELP WITH THESE 4 QUESTIONS?

tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.

not sure might be he acquired the entire oregon territory from great britain

sadi to be the richest man ever with a net worth of 500b or half a trillion there is also a story i heard if you wanna know