Evidence of human settlement in the Lerwick area dates back to the Neolithic (4000–2500 BC) and the Bronze Age (2500–800 BC) known from paleoenvironmental records for human activity and the recovery of artefacts, including a stone axe head submerged in Bressay Sound. Iron Age (800 BC – AD 800) settlement is known at the Broch of Clickimin, which was constructed as early as 400 BC. The first settlement to be known as Lerwick was founded in the 17th century as a herring and white fish seaport to trade with the Dutch fishing fleet. This settlement was on the mainland (west) side of Bressay Sound, a natural harbour with south and north entrances between the Shetland mainland and the island of Bressay. Its collection of wooden huts was burned to the ground twice: once in the 17th century by the residents of Scalloway on the western side of Mainland, then the capital of Shetland, who disapproved of the immoral and drunken activities of the assembled fishermen and sailors; again in 1702 by the French fleet.