• April 1870 (
Meiji 3): Established as a
partnership company called "Nisshusha" in present-day
Naka Ward,
Yokohama,
Kanagawa Prefecture. • January 1873 (
Meiji 6): Published the English-Japanese dictionary,
Eiwa Jii . • November 2, 1874 (
Meiji 7): Formed Yomiuri Shimbun as the news division of Nisshusha. • December 1, 1917 (
Taisho 6): Nisshusha was renamed Yomiuri Shimbun. • February 25, 1924 (
Taisho 13): Due to financial difficulties, the company was sold to
Matsutarō Shōriki, the former director of
Metropolitan Police Department. • December 26, 1934 (
Showa 9): Shoriki founded the Great Japan Tokyo Baseball Club, the predecessor of
Yomiuri Giants. • June 10, 1940 (
Showa 15): Established the prototype of the current company flag. • August 5, 1942 (
Showa 17): Merged with
Hochi Shimbun. • February 15, 1947 (
Showa 22): The company was renamed
Yomiuri Kogyo. It acquired all shares of Great Japan Tokyo Baseball Club at the same year. • January 25, 1950 (
Showa 25): Yomiuri Giants separated from Yomiuri Kogyo. • March 30, 1951 (
Showa 26): Yomiuri Giants merged back with Yomiuri Kogyo. • October 20, 1952 (
Showa 27): Established a Headquarter in
Osaka. • November 25, 1952 (
Showa 27): "Osaka Yomiuri Newspaper" was launched in Osaka. • May 1, 1959 (
Showa 34): Yomiuri Shimbun established its Hokkaido branch in
Sapporo,
Hokkaido, and started printing local version of Yomiuri Shimbun newspaper. • May 25, 1961 (
Showa 36): Yomiuri Shimbun established its Hokuriku branch in
Takaoka,
Toyama Prefecture, and started printing local version of Yomiuri Shimbun newspaper. • September 23, 1964 (
Showa 39): Yomiuri Kogyo started local printing of "Yomiuri Shimbun" under the same of "Yomiuri Shimbun Western Headquarter" in Kokura Ward of
Kitakyushu (Now
Kokurakita Ward),
Fukuoka Prefecture. • March 25, 1975 (
Showa 50): Central Yomiuri Shimbun published "Chubu Yomiuri Shimbun" in
Nagoya,
Aichi Prefecture. • February 1, 1988 (
Showa 63): Chubu Yomiuri Shimbun merged with Yomiuri Kogyo. • June 22, 1992 (
Heisei 4): Yomiuri Kogyo Co., Ltd. changed its name to Yomiuri Co., Ltd. • February 1, 1999 (
Heisei 11): Acquired
Chuokoronsha. • July 1, 2002 (
Heisei 14): Reorganization of the Yomiuri Shimbun Group. The Yomiuri Shimbun split into the operating holding company, Yomiuri Shimbun Group, and the newspaper publishing company, Yomiuri Shimbun Tokyo Headquarter. The Yomiuri Shimbun Western Headquarter and the Yomiuri Giants became independent corporations and entirely owned by the Group. In addition, Yomiuri Shimbun Central Headquarter, which was operated by Yomiuri, was downgraded to the Chubu Branch under the Tokyo Headquarter due to a split merger. • January 1, 2004 (
Heisei 16): Yomiuri Shimbun Western Headquarter moved its operation head office to Akasaka,
Chūō Ward,
Fukuoka. • October 1, 2010 (
Heisei 22): Yomiuri Shimbun Group Headquarter temporarily moved to 6-17-1
Ginza,
Chūō Ward,
Tokyo (former headquarter building of
Nissan Motor) due to the renovation of the Tokyo Headquarter building in
Ōtemachi,
Chiyoda Ward,
Tokyo. Its telephone number remained unchanged, and its dedicated
postal code was changed to 104–8243. • January 6, 2014 (
Heisei 26): Completed the new Tokyo headquarter building (
Yomiuri Shimbun Building), and the Headquarter returned to
Ginza. • May 7, 2015 (
Heisei 27): The operation headquarter of Chuokoron Shinsha moved from its own building in
Kyōbashi,
Chūō Ward to the 19th floor of the Yomiuri Shimbun Building in Otemachi. • July 18, 2017 (
Heisei 29): Yomiuri Shimbun Central Branch moved to the office building of Nayabashi East District Urban Redevelopment Building (Terasse Nayabashi) at 1-chome, Sakae, Naka Ward,
Nagoya. • December 25, 2020 (
Reiwa 2): Started acquisition of Yomiuri Land. • March 22, 2021 (
Reiwa 3): Yomiuri Land became a subsidiary entirely owned by Yomiuri Shimbun Group. == Status of the major shareholders ==