 Parts of the southern Chancay area were conquered by the Chim in the early fifteenth century and in about 1450 A.D. the Incas were occupying both areas.
<clarity>  Parts of the southern Chancay area were conquered by the Chim in the early fifteenth century and in about 1450 A.D. the Incas were occupying both areas.
 Parts of the southern Chancay area were conquered by the Chim in the early 1400s, and by about 1450 A.D. the Incas were occupying both areas.