Now that ship is impressive. Thanks for the picture.

Originally Posted By: Paul
lifting trade goods from a barge and placing them on a
pier would require ropes and pulleys and a pulley has a
wheel inside it.

Actually you can load and unload a ship by just carrying everything on your back. You can't manage huge objects that way, but at that time most materials were shipped in small containers which could be carried.

The Egyptians did trade around the Eastern Mediterranean.

It isn't clear whether the Egyptians had pulleys. They may have been able to design them, but they may not have had any materials that could take the strain.

Bill Gill
C is not the speed of light in a vacuum.
C is the universal speed limit.