Sesame (ˈsɛsəmi; Sesamum indicum) is a plant in the genus Sesamum, also called benne. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods. World production in 2018 was , with Sudan, Myanmar, and India as the largest producers. Sesame seed is one of the oldest oilseed crops known, domesticated well over 3,000 years ago. Sesamum has many other species, most being wild and native to sub-Saharan Africa. S. indicum, the cultivated type, originated in India. It tolerates drought conditions well, growing where other crops fail. Sesame has one of the highest oil contents of any seed. With a rich, nutty flavor, it is a common ingredient in cuisines around the world. Like other foods, it can trigger allergic reactions in some people. The word "sesame" is from Latin sesamum and Greek σήσαμον: sēsamon; which in turn are derived from ancient Semitic languages, e.g., Akkadian šamaššamu. From these roots, words with the generalized meaning "oil, liquid fat" were derived. The word "benne" was first recorded to be used in English in 1769 and comes from Gullah benne which itself derives from Malinke bĕne. Sesame seed is considered to be the oldest oilseed crop known to humanity. The genus has many species, and most are wild. Most wild species of the genus Sesamum are native to sub-Saharan Africa. S. indicum, the cultivated type, originated in India. Archaeological remnants of charred sesame dating to about 3500-3050 BCE suggest sesame was domesticated in the Indian subcontinent at least 5500 years ago. It has been claimed that trading of sesame between Mesopotamia and the Indian subcontinent occurred by 2000 BC. It is possible that the Indus Valley civilization exported sesame oil to Mesopotamia, where it was known as ilu in Sumerian and ellu in Akkadian, compare Southern Dravidian Kannada eḷḷu, Tamil eḷ. Some reports claim sesame was cultivated in Egypt during the Ptolemaic period, while others suggest the New Kingdom.