I say man-made, because I’ve seen pictures of walruses basking on balmy ice floes, which you could technically consider “boats,” although they don’t seem to know how to steer them particularly well.
But seriously, how old is the “fossil record” on boats?
Well I seem to remeber reading ancient Kushians on the Tigres and Euphredes (sp?) rivers using crude boats to float spices and such around the rivers. They were what, 5k years ago? 6.5k?
The Australian Aborigines didn’t swim here and they probably didn’t come by boat - they walked here.
They various aboriginal people are believed to have migrated to Australia during ice ages when Australia was connected to other parts of Oceania by landbridges
I think the oldest boat in exsistance today would have to be the one dug up near the Pyramids in Egypt. Apparently placed there for the otherworldly use of the Pharohs.
Please read the article in the link I provided previously in this thread.
The remains of what appear to be a boat found at As-Sabiyah in Kuwait are thought to be 2000 years older than the boat found in the Egyptian tomb (which dates back to about 3000 BCE).
Well, if you accept this then the Solutreans crossing the Atlantic to America where “The first migration was 20,000 to 30,000 years ago” must have used boats. And they wouldn’t have been hollowed logs but wood, sealskin and whale oil.
Dunno if DNA and flint evidence counts as a “record” for your purposes though.
While not wishing to sound petulant, my original comment specifically referred to Oceania rather than Asia. Australia certainly was connected to other parts of Oceania for long periods during the Pliestocene period, particularly to mainland Papua New Guinea. Please see the following maps of the Pleistocene geography from Encarta (as reproduced on this site.
If we want to go into really ancient stuff, this article in Archeology Magazine suggests that the earliest Mariners were Homo Erectus on the island of Flores (Indonesia) around 900,000 years ago. They base their argument on the existence of Homo Erectus stone tools on the island that has never been connected to the mainland.