Rwanda has been a unified state since pre-colonial times, and the population is drawn from just one cultural and linguistic group, the Banyarwanda (literally "those who come from Rwanda") this contrasts with most modern African states, whose borders were drawn by colonial powers and did not correspond to ethnic boundaries or pre-colonial kingdoms. Within the Banyarwanda people, there are three separate groups, the Hutu, Tutsi and Twa, who share a single language and cultural heritage.
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