What did David Livingstone discovered?

David Livingstone found many different places during his journey, his most famous discovery was the Victoria Fall, which was a great waterfall which the native people called it "Mosi-oa-Tunya" which means "the smoke that thunders", he named it victoria Fall from Queen Victoria of England. He also discovered many geographical features, including Lake Ngami, Lake Malawi and Lake Bangwelulu. He was also introduced into many different tribes and villages, as he discovered many different native cultures including Angola and Makololo. He also discovered ways to communicate and get along with the native people, telling and showing them that he's not a threat and he travelled peacefully along his journey. He also filled in the details of LAke Tanganyyika, Lake Mweru and the course of many rievers. But, the furthest north he reached was the north end of Lake Tanganyika, which was still the south of the Equator, so he did not went through the River Congo and any further north.