When did the zoo that Asahikawa, Hokkaido is well known for open?
Asahikawa, Hokkaido:  It has been a core city since April 1, 2000. Asahiyama Zoo: The Asahiyama Zoo (旭山動物園 , Asahiyama dōbutsuen ) is a municipal zoo opened in July 1967 in Asahikawa, Hokkaidō, Japan, and is the northernmost zoo in the country.
July 1967