What gave Alexandria its importance in the ancient world?

Alexandria was an important city of the ancient world. For more than two thousand years, it was the largest city in Egypt and was its capital for almost half of that time. As an important trading post between Europe and Asia, it profited from the easy overland connection between the Mediterranean Sea and the Red Sea.

(i googled it)

Alexandria was an important city of the ancient world. For more than two thousand years, it was the largest city in Egypt and was its capital for almost half of that time. As an important trading post between Europe and Asia, it profited from the easy overland connection between the Mediterranean Sea and the Red Sea.