Oil is an essential lubricant in your engine. It lets metal press against metal without damage. For example, it lubricates the pistons as they move up and down in the cylinders.
1 By the time of the Japanese surrender in August 1945, Korea was the second-most industrialized nation in Asia after Japan itself.  But the wartime mobilization of 1937-45 had reintroduced harsh measures to Japanese colonial rule, as Koreans were forced to work in Japanese factories and were sent as soldiers to the front.
People have been living on the Korean peninsula since prehistoric times, slowly developing their own distinct culture and civilization. The Korean people were first united by the Silla Dynasty in 668 A.D. Since then, Korea has had to contend with the expansionist ambitions of its neighbors.910: Japan Colonizes Korea. In 1910, the Chosun Dynasty ended with Japanâs annexation and colonization of Korea. Koreans remember the Japanese colonial rule as a brutal experience. Resistance groups formed in Korea and China, mostly adopting leftist politics in reaction to the right-wing Japanese administration.