10th century - 5th century BC: Kingdom of Dʿmt (jan 1, 1000 BC – jan 1, 500 BC)
Description:
Dʿmt was a kingdom located in Eritrea and northern Ethiopia which existed between the 10th and 5th centuries BC. Few inscriptions by or about this kingdom survive and very little archaeological work has taken place. As a result, it is not known whether Dʿmt ended as a civilization before the Kingdom of Aksum's early stages, evolved into the Aksumite state, or was one of the smaller states united in the Kingdom of Aksum possibly around 150 BC.[4]Source:
https://en.wikipedia.org/wiki/D%CA%BFmt
Added to timeline:
Date:
jan 1, 1000 BC
jan 1, 500 BC
~ 500 years