Babylonians and Egyptians.
The Egyptians
Hebrews
Properly speaking, there is no "English" calendar system. You probably mean the predominant Western Calendar (also called the Christian Calendar). This calendar system is best called the "Gregorian Calendar", after Pope Gregory XIII who introduced the calendar system in 1582.
It was King Richard I of England.
The best known work of Alexis de Tocqueville is titled "Democracy in America," which is a work written about political and social issues of the US in the 1800's.
eyptians
eyptians
Egyptians
The Egyptians
desert farming
which culture is best known for embalming tecniqes
babylonians
Charles Darwin
Hebrews
Egyptian. Famous for their mummies.
The theory of personality development and known as the father of client-centered therapy in physcology
Calendar is the best time keeping tool.