Complex sentence: The history of Rome spans more than two-and-a-half millennia of the existence of a city that grew from a small Latin village in the 8th century BC into the centre of a vast civilisation that dominated the Mediterranean region for centuries.
Split into simpler sentences: The history of Rome spans more than two-and-a-half millennia. The city grew from a small Latin village in the 8th century BC into the centre of a vast civilisation that dominated the Mediterranean region for centuries.