Editing History of Malawi (section)

===Arabs and their Swahili allies===
Using their strong partnership with the Yao, the Arab traders set up several trading posts along the shore of Lake Malawi. The Yao expeditions to the east attracted the attention of the Swahili-Arabs. It was from the Yao, the Swahili and Arabs knew the existence and the geography of Lake Malawi. [[Jumbes of Nkhotakota|Jumbe]] (Salim Abdallah) followed the Yao trade route from the eastern side of Lake Malawi up to Nkhotakota. When Jumbe arrived in Nkhotakota in 1840, he found a number of Yao and Bisa well established. Some of those Yao he found in Nkhotakota were already Islamised and he opted to employ them rather than employing non-Muslim Chewa. During the height of his power, Jumbe transported between 5,000 and 20,000 slaves through Nkhotakota annually. From Nkhotakota, the slaves were transported in caravans of no less than 500 slaves to the small island of [[Kilwa (district)|Kilwa]] Kisiwani off the coast of modern-day [[Tanzania]]. The founding of these various posts effectively shifted the slave trade in Malawi from the Portuguese in Mozambique to the Arabs of [[Zanzibar]].

Although the Yao and the Angoni continually clashed with each other, neither was able to win a decisive victory. However, the Ngoni of Dedza opted to work the Yao of Mpondas. The remaining members of the Maravi Empire, however, were nearly wiped out in attacks from both sides. Some Achewa chiefs saved themselves by creating alliances with the [[Swahili people]] who were allied with the Arab slave traders.