Ancient Egypt         The giant pyramids, temples, and tombs of ancient Egypt tell an exciting story about a nation that rose to power more than 5,000 years ago. This mighty civilization crumbled before conquering armies after 2,500 years of triumph and glory. The dry air and drifting desert sands have preserved many records of ancient Egypt until modern times.         The ancient Egyptians lived colorful, active, and eventful lives. Many were creative artists, skilled craftsmen, and adventurous explorers. Bold …showed first 75 words of 1678 total…

…showed last 75 words of 1678 total…of measurement. They worked out the foundations of geometry and arithmetic.         The Egyptians also pioneered in the field of astronomy. They distinguished between planets and stars, and devised a 365-day calendar.         In medicine and surgery, the Egyptians recognized the importance of the heart and its relation to other parts of the body. They related the speed of a personÕs heartbeat to his general physical condition. They also know how to sew and dress wounds.