体育の日[ Taikuno hi ]Health and Sports Day

Health and Sports Day (体育の日, Taiiku no hi), also known as Health-Sports Day or Sports Day, is a national holiday in Japan held annually on the second Monday in October. It commemorates the opening of the 1964 Summer Olympics held in Tokyo, and exists to promote sports and an active lifestyle.

from Health_and_Sports_Day (Wikipedia) CC BY SA 3.0