The following is a timeline of the history of the Netherlands' municipality of Groningen.
Leon E. Seltzer, ed. (1952), Columbia Lippincott Gazetteer of the World, New York: Columbia University Press, p. 723, OL 6112221M
"History". Provincie Groningen. Retrieved 30 October 2015.
Frank Huisman (1992). Stadsbelang en standsbesef: gezondheidszorg en medisch beroep in Groningen 1500-1730 (in Dutch). Erasmus Publishing. ISBN 978-90-5235-037-0.
"Historie: 1000 jaar Groningen". Groninger Archieven: Regionaal Historisch Centrum (in Dutch). Groninger Archieven. Retrieved 30 October 2015. (chronological history)
Sandi E. Cooper (1991). "Peace Societies". Patriotic Pacifism: Waging War on War in Europe, 1815–1914. Oxford University Press. ISBN 978-0-19-536343-2.
"Over ons". Groninger Archieven: Regionaal Historisch Centrum (in Dutch). Groninger Archieven. Retrieved 30 October 2015.
- Thomas Nugent (1749), "Groningen", The Grand Tour, vol. 1: Netherlands, London: S. Birt, hdl:2027/mdp.39015030762598
- "Groningen". Gazetteer of the Netherlands. Attributed to Clement Cruttwell. London: G.G.J. and J. Robinson. 1794.
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- William Henry Overall, ed. (1870). "Groningen". Dictionary of Chronology. London: William Tegg. hdl:2027/uc2.ark:/13960/t9m32q949.
- George Henry Townsend (1877), "Groningen", A Manual of Dates (5th ed.), London: Frederick Warne & Co., hdl:2027/hvd.32044088047865
- "Groningen (city)". Chambers's Encyclopaedia. London. 1901. hdl:2027/uc2.ark:/13960/t1fj2r624.
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- "Groningen", Belgium and Holland (15th ed.), Leipzig: Karl Baedeker, 1910, hdl:2027/uc1.b3129294
- "Groningen (town)" . Encyclopædia Britannica. Vol. 12 (11th ed.). 1911. pp. 613–614.
- "Groningen (province)" . Encyclopædia Britannica. Vol. 12 (11th ed.). 1911. pp. 612–613.
- Evert Jan Diest Lorgion. Geschiedkundige beschrijving der stad Groningen [Historical description of the city of Groningen] (in Dutch). Groningen: Roelfsema. 1852-1857
- Henri Zondervan, ed. (1917), "Groningen", Winkler Prins' Geillustreerde Encyclopaedie (in Dutch), vol. 8 (4th ed.), Amsterdam: Uitgevers-Maatschappy Elsevier, hdl:2027/mdp.39015068347981 (province and city)
- G. van Herwijnen, ed. (1978). "Groningen". Bibliografie van de stedengeschiedenis van Nederland [Bibliography of Urban History in the Netherlands] (in Dutch). Brill. pp. 26+. ISBN 90-04-05700-5.
- Jan Van den Broek (2007). Groningen, een stad apart: over het verleden van een eigenzinnige stad (1000-1600) (in Dutch). Van Gorcum. ISBN 978-90-232-4323-6.