19th Century glass lantern slide depicting
"Ruins of Babylon". makers NEWTON 3 Fleet Street
Norman Davidson writes page 56:
" At an early stage the Babylonians measured their days from sunset to
sunset, divided into twelve periods each called a 'beru' and lasting about two
hours. Later they divided the period from sunset to sunrise into twelve equal
parts."
In the summer daylight hours were longer
than daylight hours in winter.
It is hard to believe the complexity of
astronomical knowledge recorded in ancient times. But then the very survival of
the people depended on this knowledge