What contributions have roman and egyptians made to math?

The ancient Egyptians made observations in the fields of astronomy and geography that helped them develop a calendar of 365 days a year. The calendar was based on the annual flooding of the Nile River. The flooding began soon after the star Sirius reappeared on the eastern horizon after months of being out of sight. This reappearance occurred about June 20 each year. The calendar enabled the Egyptians to date much of their history. The dated material from ancient Egypt has helped scholars date events in other parts of the ancient world.

The ancient Egyptians could measure areas, volumes, distances, lengths, and weights. They used geometry to determine farm boundaries. Mathematics was based on a system of counting by tens, but the system had no zeros.

Ancient Egyptian doctors were the first physicians to study the human body scientifically. They studied the structure of the brain and knew that the pulse was in some way connected with the heart. They could set broken bones, care for wounds, and treat many illnesses. Some doctors specialized in a particular field of medicine, such as eye defects or stomach disorders.

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