Changes

Inventions:  Egyptians invented our 365-day solar calendar, based on 12 months of about 30 days each.  But Mesopotamia was more advanced than Egypt.  To Mesopotamia we owe our “base 60” system for our clock (60 seconds in a minute and 60 minutes in an hour).  Egyptians lacked the concept of money, and relied on primitive barter (selling a good in exchange for a different good in return).  The Egyptian Old Kingdom lacked the wheel.

Inventions:  Egyptians invented our 365-day solar calendar, based on 12 months of about 30 days each.  But Mesopotamia was more advanced than Egypt.  To Mesopotamia we owe our “base 60” system for our clock (60 seconds in a minute and 60 minutes in an hour).  Egyptians lacked the concept of money, and relied on primitive barter (selling a good in exchange for a different good in return).  The Egyptian Old Kingdom lacked the wheel.