If this identification is correct, then it was during his reign that Christianity was introduced to Axum and the surrounding territories.

Hahn, in a study published in 1983, identifies Sembrouthes, who is known only from an inscription found in Daqqi Mahari in modern Eritrea, with Ousanas.

Ousanas has been known as either Ameda/Ella Ameda, Tazer and/or Sayfa Arad depending on the text or regnal list.

Lists recorded by Pedro Páez, Henry Salt and E. A. Wallis Budge place king "Ameda" as the thirtieth to reign after Bazen (c. 8 BC–9 AD E.C.)

All but one of the copper issues are distinguished from his later namesake by a disc and crescent above the head of the king, symbols of the Sun-goddess Shams and the Moon-god Sin.

[13] Munro-Hay has described the unique gold piece minted during his reign as evidence that "the Aksumite die-cutters reached the zenith of their accomplishment".