The Granary of the Roman Empire

In my memory that's what Egypt was--why Cleopatra had wealth--Egypt grew wheat and exported to Rome.

This from a Keith Good Farmpolicy post on export issues:

Meanwhile, Emiko Terazono and Heba Saleh reported yesterday at The Financial Times Online that, “For the world’s wheat farmers already reeling from decade-low prices due to bumper crops around the world, it is the last thing they wanted.
“Confusion surrounding quarantine rules in Egypt has effectively taken the world’s largest wheat importer out of the international market, depressing prices, which are already weak from plentiful harvests.