I've been studying Korean history for about 15 years and I still don't know most of it. However, 1945 alone is very important for the entire modern world. I would say definitely the most important year in the last 100 if not more. The entire cold war and most countries would look completely different if it went another way. Mistrust between Stalin Churchhill and Rosevelt was legendary. I often wonder what the world would have been like if Rosevelt didn't die in April 1945.