What was the 38th parallel?
It was a line that separated North Korea from South 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.)
The 38th parallel was the boundary between the northern and southern halves of the Korean peninsula between World War 2 and the Korean War. After the Korean War the border between North Korea and South Korea did not change much and therefore is still sometimes referred to as the 38th parallel, though it is not along the actual 38th parallel north as it used to be.
The Korean War. The 38th parallel is also associated with World War 2. At the Potsdam Conference the US and the Soviet Union agreed that each would invade the Korean Peninsula to defeat the Japanese there. The Soviet Union was to attack from the North and the US from the south. They would both stop at the 38th parallel.
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.