Egyptian priests noticed a link between the appearance of this "dog star" & the flooding of the Nile
In ancient Chaldea (present day Iraq) the star was known as the "Dog 
Star... [DOC] [TLE] Other Ancient Calendars | Calendars - Webexhibits [PAR] Babylonian calendar; Egyptian calendar; Other calendars used in the ancient ... (
traditionally dated between 747 and 734 B.C.E.)