Between the Neolithic and Roman eras, Southeastern Britain experienced significant in migration from the continent. Finds of late Late Iron Age coins, such as the South Wight and Shalfleet Hoards, suggest trading links both with nearby tribes and further afield. The coins and ingots from these hoards had been defaced before burial, for reasons that are unknown; this feature has only been found in coin finds from Hampshire and Wight. The variety of origin of the coins found locally is more marked than elsewhere in Britain and suggests that the island may have had a degree of political separation.