ビャクダン
In the Indian subcontinent, betel chewing was introduced through early contact of Austronesian traders from Sumatra, Java, and the Malay Peninsula with the Dravidian-speakers of Sri Lanka and southern India at around 3,500 BP. This also coincides with the introduction of Southeast Asian plants like "Santalum album" and "Cocos nucifera", as well as the adoption of the Austronesian outrigger ship and crab-claw sail technologies by Dravidian-speakers. Unequivocal literary references to betel only start appearing after the Vedic period, in works like "Dipavaṃsa" (c. 3rd century CE) and "Mahāvaṃsa" (c. 5th century). Betel chewing only reached northern India and Kashmir after 500 CE through trade with Mon-Khmer-speaking peoples in the Bay of Bengal. From there it followed the Silk Road to Persia and into the Mediterranean.