Given that Napoleon visited the site of the original Suez Canal built by the Pharaoh Senuset II with a view to digging it out would tend to suggest that scholars were well aware of Egyptian naval capabilities somewhat prior to your proposed date.
Quote:I don't understand why you'd come to a discussion forum, and then proceed to reap from visibility any voice that disagrees with you. If you're going to do that, why not just sit in front of a mirror and pat yourself on the back continuously?-Esquilax
Evolution - Adapt or be eaten.