History
| Sep. | 1907 | Foundation of Tohoku Imperial University |
|---|---|---|
| Jun. | 1911 | Establishment of Tohoku University Library |
| Dec. | 1915 | Establishment of the Medical Branch Library |
| May | 1949 | Inauguration of Tohoku University (New System) |
| Jan. | 1954 | Establishment of the Library Committee |
| Apr. | 1957 | Establishment of the Tomizawa Library |
| Sep. | 1958 | Relocation of the Tomizawa Library to the Kawauchi Area |
| Jul. | 1963 | Establishment of Tohoku University Memorial Hall |
| Apr. | 1964 | Establishment of the Education Library (ex-Kawauchi Library) |
| Apr. | 1965 | Implementation of a system of departments and divisions in the library |
| Jul. | 1965 | Designation of the library as a United Nations Depository Library |
| Jan. | 1966 | Establishment of the library research center |
| Jan. | 1970 | Designation of the library as a OECD Depository Library |
| Apr. | 1972 | Abolishment of the Education Library and its merger with the main library |
| Nov. | 1973 | Opening of the newly built main library in Kawauchi |
| Apr. | 1974 | Establishment of the Agricultural Library |
| Apr. | 1978 | Establishment of the Engineering Library |
| Apr. | 1982 | Establishment of the Kita-Aobayama Library |
| Sep. | 1983 | Designation of the library as an EC Information Center |
| Oct. | 1986 | Refurbishment of the previous main library in Katahira as a memorial hall |
| Dec. | 1986 | The Tohoku University Library Information Management Network System (T-LINES1) comes into operation |
| Jan. | 1987 | Connection with the Academic Information Center |
| Sep. | 1987 | T-LINES1 becomes fully operational |
| May | 1990 | Opening of a new library building (No. 2) |
| Dec. | 1991 | The Tohoku University Library Information Management Network System (T-LINES2) is updated |
| May | 1992 | Commencement of Saturday opening hours for the library |
| Apr. | 1995 | Merger of the Engineering Library with the Faculty Library |
| Mar. | 1996 | Commencement of the second generation information database service |
| Apr. | 1996 | Extension of the library opening hours to 21:00 |
| Dec. | 1996 | The Tohoku University Library Information Management Network System (T-LINES3) is updated |
| Mar. | 1997 | Introduction of a library user's educational support system |
| Nov. | 2000 | Abolishment of the memorial hall (relocation to the archives) |
| Dec. | 2000 | Establishment of a library assistant directorship The Tohoku University Library Information Management Network System (T-LINES4) is updated |
| Mar. | 2001 | Abolishment of the Library Research Center (transferal of control to the Information Synergy Center) |
| Dec. | 2001 | Introduction of an integrated academic information system |
| Mar. | 2002 | Publication of the self-inspection and evaluation report "Tohoku University Library: Current Status and Issues." |
| Jul. | 2002 | Library External Assessment Committee held (results published in March, 2002) |
| Sep. | 2002 | Complete transition of T-LINES 4 to a gigabit network (Tohoku University Total Information System: T-LINES/G) |
| Oct. | 2002 | Commencement of the Academic Information Portal service |
| Apr. | 2003 | Commencement of Sunday and Public Holiday library opening hours |
| Apr. | 2004 | In line with the incorporation of national universities, Tohoku University becomes incorporated |
| Dec. | 2005 | Tohoku University Library Information Management System is updated |
| Mar. | 2007 | The Tohoku University Repository (TOUR) is opened Commencement of e-DDS (electronic document delivery service) |
| Apr. | 2007 | Commencement of the Inter-Campus Printed Material Transferal Service |
| Sep. | 2007 | Commemoration of the 100th anniversary of the founding of Tohoku University, the 100th anniversary of Natsume Soseki's joining the Asahi Shimbun newspaper and the 15th anniversary of the opening of the Edo-Tokyo Museum |
| Nov. | 2007 | "The Treasures of Tohoku University", an exhibition commemorating the 100th anniversary of the founding of Tohoku University, is held at the Sendai City Museum |
| Mar. | 2008 | "The Spirit of Natsume Soseki", an exhibition commemorating the 100th anniversary of the founding of Tohoku University, is held at Sendai Literature Museum |
| Feb. | 2009 | Seismic repair work at main library was done |
| Apr. | 2009 | Main library has extended opening hours |
| Mar. | 2010 | Tohoku University Wasan Portal is awarded the Mathematical Society of Japan Publication Prize |
| Dec. | 2010 | Tohoku University Library Information Management System is updated (T-LINES6) |
| Jun. | 2011 | 100th anniversary of the founding of Tohoku University Library |
| Mar. | 2012 | Opening of the Great East Japan Earthquake Library |
| Nov. | 2012 | Opening of Learning Commons in the Main Library |
| Oct. | 2014 | Reopening of the Main Library after remodeling |