1923 (Taisho 12)- Great Kanto Earthquake happened. Kanda store was burned down.
April 1924 (Dazheng 13)- Reconstruction of Kantian Store. From the initial seat sales system to the display sales method. In the future, it will be changed into a department store.
1930 (5th year of Showa)-Isetan, joint-stock company was established. The new store decided to open in Shinjuku.
1933 (8th year of Showa)-Shinjuku Store opened. At that time, there was also an ice rink attached.
1945 (the 20th year of Showa)-Shinjuku was accepted by the garrison above the 3rd floor.
1953 (28 th year of Showa)-The reception of the whole museum was lifted.
1968 (43 years of Showa)-"New Hall for Men" opened.
197 1 year (46 years of Showa)-Jixiangsi store opened? (Zhu) Operation Support of Tanaka Prefecture (now Shizuoka Isetan)
1974 (Showa 49)- Songhu Store opens.
1975 (50 years of Showa)-Use lowercase "Isetan" trademark.
198 1 year (56th year of Showa)-Puhe Store opened.
1984 (Showa 59)- Niigata Isetan opens a shop.
1986 (Showa 6 1 year)-Commemorating the opening100th anniversary, using the current trademark.
1987 (Showa 62)- Introduction of "Isetan I Card" of Zishe Credit Card.
1989 (the first year of Heisei) March-Barnes' career promotion in many aspects in the United States. (cancelled in 2006)
1990 (2 years of Heisei)-Isetan JR West Japan was established (the merger club of JR West Japan), and Sagami's original store opened.
1996 (Heisei 8 years) July-Joined Hankyu Department Store for business promotion. Fuzhong store opens a shop.
1997 (9 years of Heisei) September -JR opened Isetan in Kyoto.
2003 (heisei 15)- mingtie department store? Izutsuya support? Commercial promotion. The "Men's New Pavilion" was renamed "Men's Pavilion" (Gentleman's Pavilion).
February, 2004 (Heisei16)-Isetan Kokura opened, and Kyushu entered and left at the beginning.
2005 (Heihei 17)- Support from Iwatani Link Subsidiary Association and Marui Imai? Commercial promotion.
2006 (heisei18)-the 20th anniversary of Isetan/kloc-0. 25th anniversary of Puhe store: store decoration.
On April 1 day, 2008 (the 20th year of Heisei), the new company Mitsukoshi Isetan Holdings was established, and 1 Isetan shares were exchanged for 1 Isetan shares. One share of Mitsukoshi can be exchanged for three shares of Mitsukoshi Isetan Holdings, and Mitsukoshi and Isetan become wholly-owned subsidiaries of Mitsukoshi Isetan Holdings. Isetan, a joint venture with Izu Valley, closed its store and all its shares were transferred to Izu Valley. Isetan Department Store withdrew from Kitakyushu, and the original site of COLET in Izu Valley was newly opened on April 1 day.
March 2009 (Heisei 21)-It was announced that a new store would be opened in the building of JR Osaka Station, with the name of "JR Osaka Mitsukoshi Isetan".
20 10 (22 years of Heisei) March 14- Jixiangsi store closed.