River Valley Civilizations
Achievements Ancient Egypt: It has been said that they created a calendar with 12 months, each with 30 days and then added 5 days at the end of the year. Now is our modern-day calendar. Egypt came up with the idea of quarrying to get bigger blocks to help with building the massive pyramids that still stand today. We often nowadays use quarrying to dig up big parts of the land Adrianna Ancient Mesopotamia: Some of the…