Meghalaya literally means "the abode of clouds" in Sanskrit. Meghalaya was carved out of Assam in 1972. Meghalaya has historically followed a matrilineal system where the lineage and inheritance are traced through women. Meghalaya is predominantly an agrarian economy. Meghalaya has a rich base of natural resources. These include minerals such as coal, limestone, sillimanite, Kaolin and granite among others. With average annual rainfall as high as 1200 cm in some areas, Meghalaya is the wettest place on earth. English is the official language of Meghalaya. It is also a major logistical center for trade with Bangladesh.