What did the mayas develop?
a. intricate roads to connect different parts of their empire
b. stone carvings that showed images of their rulers
c. a calendar based on a solar year of 365 days
d. an urban area with a system of canals

The ancient system of trade routes that ran from rome to china was known as the

The formation of business monopolies in the late 1800s was made possible by the (1) effects of laissez-faire policies (2) passage of federal antitrust laws (3) elimination of the free-enterprise system (4) adoption of socialist economic practices

Which phrase best completes the diagram? apex