Context: The kingdom is mentioned in the Periplus of the Erythraean Sea as an important market place for ivory, which was exported throughout the ancient world. Aksum was at the time ruled by Zoskales, who also governed the port of Adulis. The Aksumite rulers facilitated trade by minting their own Aksumite currency. The state also established its hegemony over the declining Kingdom of Kush and regularly entered the politics of the kingdoms on the Arabian peninsula, eventually extending its rule over the region with the conquest of the Himyarite Kingdom.

Question: Who ruled Aksum and also governed the port of Adulis?
Answer: Zoskales

Question: How did the Aksumite rulers facilitate trade?
Answer: by minting their own Aksumite currency

Question: Which kingdoms did Aksum regularly enter the politics of?
Answer: on the Arabian peninsula

Question: Who did Aksum conquer in order to extend its rule over the Arabian peninsula?
Answer: Himyarite Kingdom

Question: Where was Ivory exported according to the Periplus of the Erythraean Sea?
Answer: throughout the ancient world

Question: Whose face was on the Aksumite currency?
Answer: Unanswerable

Question: What country politics did the Aksumite rulers refuse to get involved with?
Answer: Unanswerable

Question: Who was the ruler of the Himyarite Kingdom at the time?
Answer: Unanswerable

Question: In what country was the Periplus of the Erythraean Sea written?
Answer: Unanswerable

Question: What product did the Kingdom of Kush export?
Answer: Unanswerable