Saba Saba Day
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Saba Saba Day celebrates (among other things) the 1954 founding of the Tanzanian political party, TANU, the Tanganyika African National Union. Saba Saba means "seven seven" in Swahili, the national language of Tanzania (and of Tanganyika and Zanzibar, the two countries whose union created the United Republic of Tanzania in 1964).