what is the history of tanzania?

Question

this is for my report and if u can give me an answer please and thank u

Answer 1

"The present country came into being with the union of Tanganyika and Zanzibar in 1964. There are over 120 tribes on the mainland, most of which migrated from other parts of Africa. The first European arrival was the Portuguese explorer, Vasco da Gama, who visited the coast in the late-15th century, after which most of the littoral region came under Portuguese control. The Portuguese also controlled Zanzibar until 1699, when they were ousted from the island by Omani Arabs. In the late-19th century, along with Rwanda and Burundi, Tanganyika was absorbed into the colony of German East Africa, as a consequence of a deal between the British and Germans – one process in the European colonial carve-up of Africa."