1.6.1 10th century BCE – 6th century BCEīefore the Common Era 9th millennium BCE – 5th millennium BCE 100th century BCE – 50th century BCE.1.5.2 15th century BCE – 12th century BCE.1.4.3 23rd century BCE or 23rd century BCE – 22nd century BCE.1.4.1 29th century BCE – 25th century BCE.1.3.1 70th century BCE – 17th century BCE.1.3 8th millennium BCE – 2nd millennium BCE.1.1.1 100th century BCE – 50th century BCE.1.1 9th millennium BCE – 5th millennium BCE.
