Why did Bahrain receive a lot of immigrants during the Dilmun civilization?

Bahrain received a lot of immigrants during the Dilmun civilization because the Dilmun civilization traded actively with the Middle East, and immigrants traveled along the trade routes.

Explanation:

theodore roosevelt challenged william to a duel, whoever won, got their policy sent to congress. it ended up in a stalemate, and both men were injured and sent to the hospital.

the roman army grew in size and became dominant in the mediterranean region.