What does OEA mean in Unclassified?

Oea

Oea was an ancient city in present-day Centre ville, à le Souq, Yafran Tripoli, Libya. It was founded by the Phoenicians in the 7th century BC and later became a Roman–Berber colony. As part of the Roman Africa Nova province, Oea and surrounding Tripolitania were prosperous. It reached its height in the 2nd and 3rd centuries AD, when the city experienced a golden age under the Severan dynasty in nearby Leptis Magna. The city was conquered by the Rashidun Caliphate with the spread of Islam in the 7th century and came to be known as Tripoli during the 9th century.

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