What kingdom was located in present day Ethiopia and Eritrea?

The Kingdom of Aksum or Axum, also known as the Aksumite Empire, was a trading nation in the area of Eritrea and Northern Ethiopia. It existed from approximately 100-940 AD. It grew from the proto-Aksumite Iron Age period c. 4th century BC to achieve prominence by the 1st century AD, and was a major player in the commercial route between the Roman Empire and Ancient India. The Aksumite rulers facilitated trade by minting their own Aksumite currency, the state established it's hegemony over the declining Kingdom of Kush and regularly entered the politics of the kingdoms on the Arabian Peninsula, eventually extending it's rule over the region with the conquest of the Himyarite Kingdom. The Persian Profit Mania regarded Axum as the third of the four greatest powers of his time after Persia and Rome, with China being the fourth.