Complex sentence: Their ancestry, of African and Carib Indian mix, traces to Saint Vincent where they rebelled against the British in 1797 and were expelled to Roatán, from which they spread along the Honduran coast.
Split into simpler sentences: Their ancestry, of African and Carib Indian mix, traces to Saint Vincent. There they rebelled against the British in 1797 and were expelled to Roatán, from which they spread along the Honduran coast.