What parts of Korea did the 38th parallel divide?
the 38th parallel divided the communist Northern part of Korea and the capitalist Southern part of Korea.
Korea is divided into communist North Korea and republican South Korea at the 38th parallel. . Korea is divided in communist North Korea and republican South Korea at the 38th parallel. (The Billy Joel song "Leningrad" contains the line, "Stop 'em at the 38th parallel" in reference to the Cold War and specifically the Korean War.)
After the defeat of Japan in 1945, the 38th parallel was chosen to divide the Korean peninsula into two US and Soviet occupied zones. The line dividing North and South Korea is still often referred to as the 38th parallel, but the border is no longer parallel to the equator and rather runs diagonally across the peninsula.
The 38th parallel is actually one of the imaginary (I can't remember if it's longitude or latitude) lines that divide the earth. In the Korean War, the war stalled out around the 38th parallel and so the peace treaty ending the war put the borders between North and South Korea roughly along that line.