The timeline is also available in .pdf format.

1912As a result of a petition circulated amongst the townspeople, an Association Library was opened on April 10th in the Huron Chambers.
1917New quarters were found for the library on the second floor of the Post Office on the corner of Durham and Elgin.  Property for a library building was purchased at the corner of Lorne and Elm streets.
1932The library moved to the top floor of the C.P.R.Telegraph building on Elgin Street.
1938The first trained librarian, Miss Charlotte Douglas, appointed.  Decision to purchase a library site at the corner of Davidson and Orr Streets.  A Children's Hour started on Saturday mornings, November 12th.
1947Library hours were increased to offer all day service in October.  Visits to the library for high school classes arranged.  Space provided for handicraft classes.
1948Circulation of books passed the 200,000 mark.  A record collection was established.  A gift of a piece of property from the W.E. Mason Foundation sovled the problem of a library site.  Sudbury's Chief Librarian invited to become a guest lecturer at the Ontario Library School.
1950An Institute for Trustees and Librarians held in Sudbury.  The cataloguing of the adult library completed.
1951In late August, construction begain on the new library building.  Gifts of $50,000, $25,000 and $1,000 from W.E. Mason Foundation, the International Nickel Company of Canada Limited, and Falconbridge Nickel Company, respectively, were made toward the building fund.
1952The cornerstone of the new library was laid in June 1952, building opened for service September 25th.
1954The W.E. Mason Foundation donated $20,000 to complete the auditorium.  The Club Richelieu donated tiny stacking chairs for the use of the children in the Story-Hour room.
1961The city's first Bookmobile service was launched.  Alterations were made to the building to cope with a growing membership.
1963The completion of the South wing of the Main library in June added 7,600 square feet to the building.

A new 40 foot Bookmobile was purchased in February capable of carrying 4,000 books.

1966The W.C. Sinclair Branch Library in the New Sudbury Shopping Centre was opened by Mrs. Sinclair on September 24th.
1971The Sudbury Public Library became a depository library for Ontario government publications.  The first computer produced book catalogue was introduced. 
1973The Copper Cliff Library became a branch of the Sudbury Public Library system.  Teh Regency Mall Branch Library was officially opened on September 29th.
1976The W.C. Sinclair Branch Library re-located within the New Sudbury Shopping Centre. 
1979Mackenze Street building renovated.  All public services located on one ground floor level.  Princess Anne operation suspended.
1982The Civic Square Branch Lending Library was closed.
1983The Regency Mall Branch Library was moved to Cedar Point Mall and re-named accordingly.
1984The Bookmobile was withdran from service. An inventory of the library stock showed over 12,000 books missing.
1989The library launched its automated system.
1992In February, the Cedar Pointe Branch library moved to 1991 Regent Street S. and was re-named South Branch.  
1996The W.C. Sinclair Branch library moved from the New Sudbury Shopping Centre to a home of its own on the corner of Holland Road and Lasalle Boulevard.  It was re-named the New Sudbury Branch Library. 
1998The Main Library was completely renovated, and the Reference Service was reintegrated to the Main Library on Mackenzie St.  Sunday hours of service started at New Sudbury and South Branch. 
1999The library launched its M.E.T.E.O.R. website (Megasite for Education, Technology, and the Enjoyment of Online Resources), allowing its catalogue to be available through the Internet. 
2000With the introduction of amalgamation in the City of Greater Sudbury, the library system grew from four locations to fourteen locations.  The citizens of Greater Sudbury have access to library services and programs at the following library locations: Main, Chelmsford, New Sudbury, South, Lively, Valley East, Capreol, Garson, Dowling, Azilda, Copper Cliff, Levack, Coniston and Walden West. 
2008The Greater Sudbury Public Library partnered with the Greater Sudbury Heritage Museums, Vale INCO, Cambrian College, and the City of Greater Sudbury to create the INCO Triangle Digital Archives.
2009Order came to a close at the South Branch Library on March 6 due to structural damage.  The library was moved to a temporary location.  In November, wireless Internet became available at all Greater Sudbury Public Libraries. 
2010January 26.  New Azilda Library opens on Rue. Ste. Agnes.  The old South Branch Library was demolished in March.  Site preparation occurred from July to September.  Professor Emeritus Roger Nash was named the first Poet Laureate for the City of Greater Sudbury.  GSPL launched it's electronic book collection.  
2011The construction of what will become the new South Branch Library begain in August.  The Friends of the Library launched a fundraising campaign entitled "Write the Next Chapter" that aims to raise $600,000 to new equipment for the South Branch Library. 
2012Daniel Aubin named Poet Laureate for the City of Greater Sudbury.  New South End Library opens in July.