Kim Il-sung (1912-1994), absolute ruler of North Korea for 46 years, was the first communist head of state to establish dynastic rule, enabling his son to succeed him.

Kim Il-sung was born Kim Sung-ju on April 15, 1912, the son of a middle-class schoolmaster named Kim Hyung-jik in Pyongan-namdo, a northeastern province of Korea. For hundreds of years known as the Hermit Kingdom because of its sealed borders and attempted isolation from its powerful neighbors, Korea was annexed by expansionist Japan two years before Kim's birth. Japan's colonial domination become progressively harsher, and the state-sanctioned biographies of Kim's youth have him rebelling by scratching out with a penknife the Japanese titles of his required schoolbooks and by exhorting his schoolmates to speak Korean, not Japanese. About 1925 Kim fled with his parents to Manchuria to escape Japanese oppression.

Kim spent the next 14 years in Manchuria, attending middle school in Kirin, joining the...