 In 1955, Kotoni Town, the entire Sapporo Village, and Shinoro Village were merged into Sapporo, becoming a part of the current Chūō-ku, Kita-ku, Higashi-ku, Nishi-ku, and Teine-ku.The expansion of Sapporo continued, with the merger of Toyohira Town in 1961, and Teine Town in 1967, each becoming a part of Toyohira-ku, Kiyota-ku, and Teine-ku.The ceremony commemorating the 100th anniversary of the foundation of Sapporo and Hokkaido was held in 1968.