Improvement in medicine and science, this helps us live longer and therefore results in the birth of more children.
Answer:
(The more-complex European phase was the Seven Years' War [1756–63].) It determined control of the vast colonial territory of North America. Three earlier phases of this extended contest for overseas mastery included King William's War (1689–97), Queen Anne's War (1702–13), and King George's War (1744–48).
