maritime history. This includes a post-1980s turn towards the study of human users of ships (which involves sociology, cultural geography, gender studies and narrative studies); and post-2000 turn towards seeing sea travel as part of the wider history of transport and mobilities. This move is sometimes associated with Marcus Rediker and Black Atlantic studies, but most recently has emerged from the International Association for the History of Transport, Traffic and Mobilities (T2M) See also: Historiography related articles below Pre-historic times Watercraft such as rafts and boats have been used far into pre-historic times and possibly even by Homo erectus more than a million years ago crossing straits between landmasses. Little evidence remains that would pin point when the first seafarer made their journey, but it is thought to have occurred some ca. 40,000 year ago in Greater Australia. One of the oldest known boats to be found, is the Pesse canoe, and carbon dating has estimated its construction from 8040BC to 7510BC. The Pesse canoe is the oldest physical object that can date the use of watercraft, but the oldest depiction of a watercraft is from Norway. The rock art at Valle, Norway depicts a carving of a more than 4 meter long boat and it is dated to be 10,000 to 11,000 years old. Ancient times Throughout history sailing has been instrumental in the development of civilization, affording humanity greater mobility than travel over land, whether for trade, transport or warfare, and the capacity for fishing. The earliest depiction of a maritime sailing vessel is from the Ubaid period of Mesopotamia in the Persian Gulf, from around 3500 BCE to 3000 BC. These vessels were depicted in clay models and painted disks. They were made from bundled reeds encased in a lattice of ropes. Remains of barnacle-encrusted bituminous amalgams have also been recovered, which are interpreted to have been part of the water-proof coating applied on these vessels. The depictions lack details, but an image of a vessel on a shard of pottery shows evidence of what could be bipod masts and a sail, which would make it the earliest known evidence of the use of such technology. The location of the sites indicate that the Ubaid culture was engaging in maritime trade with Neolithic Arabian cultures along the coasts of the Persian Gulf for high-value goods. Pictorial representation of sails are also known from Ancient Egypt, dated to