尼扬姆维奇人是19世纪坦桑尼亚内陆地区最重要的贸易者。尼扬姆维奇人成为非洲东海岸内陆贸易的重要参与者,除了口头传说所显示的偶然性外,也和他们所生活地域的地理、气候和物产密切相关。由于商品来源的日益枯竭、其他贸易者的激烈竞争导致地区形势的动荡,以及西方殖民者的入侵等原因,尼扬姆维奇人的贸易从19世纪中后期开始逐渐衰落。 The Nyangamovians are the most important traders of the 19th century inland Tanzania. Nyanvim became an important player in the inland trade on the east coast of Africa and, in addition to the chances of verbal legend, is also closely related to the geography, climate and property of the area in which they live. Nyanwewei’s trade began to decline from the mid-19th century onwards due to the increasingly depleted sources of commodities and the turbulent regional situation caused by the fierce competition of other traders, as well as the invasion of Western colonialists.