Sounds like they canoed across the narrow Straight of Gibralter with a burned out log canoe (or they put a suggestive image of it in there anyway). Hundreds of

Sounds like they canoed across the narrow Straight of Gibralter with a burned out log canoe (or they put a suggestive image of it in there anyway). Hundreds of people have swum across the Straight of Gibralter, I don't think this is showing emergence of civilization necessarily if it was swimming or canoeing.