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has led archaeologists to believe the world's first war was in Sudan. Researchers re-examined 61 skeletons from Jebel Sahaba in the Nile Valley. The
are 13,400 years
. They were discovered in the 1960s. For decades, scientists believed the
-old humans were killed in a
. New research on the
revealed that they were killed during a
war that took place over
years. The skeletons are
regarded as evidence of the earliest organized warfare. Furthermore, the scientists said the war was
because of climate change.
