How did trade between the Nile River and the Red Sea contribute to Alexandria’s growth?

Historically, the connection between the Nile River and the Red Sea was facilitated by ancient canals, such as the Canal of the Pharaohs and Trajan’s Canal, which were designed to move goods between the Nile delta and the Red Sea rather than to provide a direct maritime passage to the Mediterranean.1

While these early waterways supported regional trade, Alexandria’s growth was more directly tied to its role as a Mediterranean port. During the Islamic period, Alexandria flourished as a center for the spice trade flowing through Egypt, though the city's commercial lifeline was often dependent on canals linking it to the Nile. In the 19th century, Muhammad Ali revitalized the city by building the Al-Mahmudiyyah Canal to reconnect Alexandria to the Nile, which spurred economic expansion and trade.23

It is important to note that the modern Suez Canal, which provides a direct link between the Mediterranean and the Red Sea, was a separate development that reestablished Egypt as a global trade hub, rather than a project that relied on the Nile-to-Red Sea route to grow Alexandria.314