8 lugl 4000 anni a. C. - Egyptians create first sun calendar.
Descrizione:
Egyptians created the first calendar based on where the sun is a current times. This let them start counting days, years, and eventually hours and minutes.Aggiunto al nastro di tempo:
Data:
8 lugl 4000 anni a. C.
Adesso
~ 6028 years ago
