text: Prior to the Gorkha conquest, which began with the Battle of Kirtipur in 1767, the borders of Nepal Mandala extended to Tibet in the north, the nation of the Kirata in the east, the kingdom of Makwanpur in the south and the Trishuli River in the west which separated it from the kingdom of Gorkha.
  Economic history
  Trade, industry and agriculture have been the mainstay of the economy of the Newars. They are made up of social groups associated with hereditary professions that provide ritual and economic services. Merchants, craftsmen, artists, potters, weavers, dyers, farmers and other castes all played their part in creating a flourishing economic system. Elaborate cultural traditions which required the use of varied objects and services also fueled the economy. Towns and villages in the Kathmandu Valley specialized in producing particular products, and rich agriculture produced a surplus for export.
  For centuries, Newar merchants have handled trade between Tibet and India as well as exporting locally manufactured products to Tibet. Rice was another major export. Porters and pack mules transported merchandise over mountain tracks that formed the old trade routes. Since the 18th century, Newars have spread out across Nepal and established trading towns dotting the mid hills. They are known as jewelry makers and shopkeepers. Today, they are engaged in modern industry, business and service sectors.