king Decebalus had changed the course of river Sargetia and buried tons of gold and silver in the river bed. Later, he ordered the river to be restored and the slaves involved in the works to be executed. However, one of his nobles revealed the treasure's location to the Romans. The Byzantine historian Jordanes tells a similar story of the burial of the Visigoth king Alaric I and his treasure under the river Busento in 410. The burial places of the Khazar kings (qoruq) and other inner Asian people were also under a rerouted river. There are a number of reports of supposed buried pirate treasure that surfaced much earlier than these works, which indicates that the idea was at least around for more than a century before those stories were published. For example, extensive excavation has taken place on Oak Island (in Nova Scotia) since 1795 in the belief that one or more pirate captains had hidden large amounts of valuables there. These excavations were said to have been prompted by still older legends of buried pirate treasure in the area. No treasure has yet been reported found. The Treasure of Lima is a supposed buried treasure on Cocos Island in the Pacific abandoned by pirates. The treasure, estimated to be worth £160 million, was stolen by British Captain William Thompson in 1820 after he was entrusted to transport it from Peru to Mexico. The only authenticated treasure chest in the United States, once owned by Thomas Tew, is kept at the Pirate Soul Museum in St. Augustine, Florida. Pirate Olivier Levasseur, also known as "The Buzzard" (La Buse), was rumoured to have hidden treasure before his death in 1730. No such treasure has been found. During the 1666 Great Fire of London, wealthy residents of the city buried luxury goods such as gold and wine in the ground to protect it from the raging flames above. Samuel Pepys, the noted diarist, buried a wheel of cheese in his garden to protect it from the fire. Buried treasure is not the same as a hoard, of which there have been thousands of examples found by archaeologists and metal detectors. Buried treasure is as much a cultural concept as an objective thing. It is related to pirates and other criminals who leave stolen artifacts behind for later retrieval, typically in remote places like islands, sometimes with maps leading back to