Which of these is a characteristic of the inca civilization?

a. astronomers predicted eclipses and developed a 365-day calendar.

b. its capital city had a population larger than any european city of the time.

c. emperors communicated using runners from the capital city of cuzco.

d. scribes painted books and kept records of taxes and territories conquered.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

2 is armenia i think

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.