Complex sentence: Prior to the arrival of Bantu speakers in present-day Zimbabwe the region was populated by ancestors of the San people who were present in the region when the first Bantu-speaking farmers arrived during the Bantu expansion around 2000 years ago.
Split into simpler sentences: Prior to the arrival of Bantu speakers in present-day Zimbabwe the region was populated by ancestors of the San people. The first Bantu-speaking farmers arrived during the Bantu expansion around 2000 years ago.