666 BC

The year 666 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 88 Ab urbe condita . The denomination 666 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Middle East

 * King Ashurbanipal undertook a campaign to Egypt.
 * One theory is that this is the year Psammitichus I ascended the throne.

Births
There are no recorded births of notable people during this year.