[ksfrogman]

Okay, this one is totally off topic, but I figured that with all the Asian members, someone would know the answer to this.

My father served as an American officer in the Korean war. We had a brief discussion about the pre-WWII Empire of Japan, and how that country at one time had rule over Korea. Have you ever noticed how both the Korean and Japanese flags have a white background with a circle in the center (with red color). He said that after the Japanese left Korea, the Koreans changed the flag a little bit by putting the Yin/Yang symbol in the middle and by adding the marks in the four corners.

Is this true about the similarities or is this coincidence?