Sumatra was known in ancient times by the Sanskrit names of "Suwarnadwīpa" ("Island of Gold") and "Suwarnabhūmi" ("Land of Gold"), because of the gold deposits in the island's highlands. The earliest known mention of the current form "Sumatra" was in 1017, when the local king Haji Sumatrabhumi ("King of the land of Sumatra") sent an envoy to China. Arab geographers referred to the island as "Lamri" (Lamuri, Lambri or Ramni) in the tenth through thirteenth centuries, in reference to a kingdom near modern-day Banda Aceh which was the first landfall for traders. The island has also been known by other names, including Andalas or Percha Island.