Complex sentence: Dispersion from the Nilotic homeland in South Sudan was presumably triggered by the turmoils of the Muslim conquest of Sudan, and the migration of the individual groups over the last few centuries can to some extent be traced in the respective group's oral history.
Split into simpler sentences: Dispersion from the Nilotic homeland in South Sudan was presumably triggered by the turmoils of the Muslim conquest of Sudan. The migration of the individual groups over the last few centuries can to some extent be traced in the respective group's oral history.