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

The mayans developed:   calendar based on a solar year

The mayan utilized the shadows that created by the sun light to pin point the time in their solar calendar. They used the information to determine the correct time to plant different variety of agricultural products because some of them can only survive in certain types of climate.

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jim crow laws were enacted in northern states.