Marine archaeologists in India believe they have found a sunken 'lost city' which pre-dates all previous signs of civilisation by 5,000 years. The site lies at a depth of 36m, 40 miles off the coast of Gujarat, in an area known for dangerous currents and rip tides. Most of the investigative work has been carried out using sonar scanning equipment which reveals the buried structure. Divers have retrieved a number of artefacts which have been carbon dated to 7,500BC. If these dates are correct, the city will predate the earliest known urban civilisation by 2,000 years. The discovery has been greeted with scepticism by many experts as carbon-dating is not regarded as completely reliable.
Source: www.divernet.com