The study of oceans in world history
(a) focuses on trans-atlantic themes.
(b) focuses on the commercial activities of elite classes.
(c) has less impact on global history than the study of land masses.
(d) narrows the study of interaction among global peoples.
(e) coordinates with an emphasis on societies as well as civilizations.

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.