1. Inokashira Onshi ParkMusashino Inokashira Park straddles Musashino and Mitaka in western Tokyo, Japan. Inokashira Pond and the Kanda River water source , established during the Edo period, are the primary sources of the Kanda River. The land was given to Tokyo in 1913. On May 1, 1918, it opened under the name Inokashira Onshi Kōen , which can be translated as, Inokashira Imperial Grant Park. Thus the park was considered a gift from the Emperor to the general public. From Wikipedia, the free encyclopedia.