April 18, 1929-The keel of the Leipzig is laid down in the Marinwerft shipyards of Wilhelmshaven.
October 18, 1929-The Leipzig is launched.
October 8, 1931-The Leipzig is commissioned. The ship then undergoes trials and training operations in the Baltic Sea.
Spring through summer 1932-The Leipzig undergoes a series of engine and weapons tests.
Fall 1932-The Leipzig is involved in fleet operations.
February 21 through March 1933-The Leipzig takes part in battle training operations in the northern Atlantic.
1934-The Leipzig visits Portsmouth before training in teh North Atlantic, Irish Sea, Hebrides, and the North Sea. The ship also takes part in fleet operations.
1935-The Leipzig takes part in more fleet operations. Leipzig then is with the light cruiser Köln to test new radar equipment.
April 15 through May 8, 1936-The Leipzig, Nürnberg, and Köln undergo a series of training exercises involving the new radar system in the North Atlantic.
August 20 through October 10, 1936-The Leipzig is involved in the First Spain operation.
October 1936 through January 1937-The Leipzig enters drydock for repairs.
March 9 through May 19, 1937-The Leipzig takes part in the Second Spain operation.
June 1, 1937 through June 29, 1937-The Leipzig participates in the Third Spain operation, then reports for fleet operations.
1938-The Leipzig is with Z2 Georg Thiele for battles and refueling training, then joins the Karlsruhe for navigation training before joining the Nürnberg for towing training.
December 17, 1938 through March 15, 1939-The Leipzig enters drydock for repairs and refitting.
August 24 through September 2, 1939-The Leipzig is assigned to patrol duties in the Baltic Sea.
November 7, 1939-The Leipzig collides with the training ship Bremse
December 12 through December 13, 1939-The Leipzig joins the Nürnberg and the Köln forms the Befehlshaber der Aufklerungskraefte (reconnaissance force), which is responsible for covering five German destroyers on a mining mission. Shortly after meeting the destroyers, the British submarine Salomon torpedoes both the Leipzig and Nürnberg. The five destroyers break off to chase the submarine while the damaged cruisers limped away.
December 15, 1939-The Leipzig is attacked by the British submarine Ursula, but the torpedoes missed and sank the escort ship F9.
December 1939 through November 1940-The Leipzig enters drydock for repairs. The cruiser would never again be fully operational. A damaged boiler room would be changed into cadet quarters, and the Leipzig would only be used for training reasons.
Feburary 1940-The Leipzig is withdrawn from service with the German Kriegsmarine.
December 1, 1940-The Leipzig is recommissioned.
September 1941-The Leipzig joins the Baltic Fleet, and is stationed at Oesel and Dagoe.
November 1941 through September 1943-The Leipzig is assigned to the Training Section of the Kriegsmarine.
October 1 through September 5, 1943-The Leipzig returns to service, but with fewer crew members.
October 15, 1944-The Leipzig is leaving Gotenhafen, and is needed to switch from diesel to turbines, when the cruiser is rammed by the Prinz Eugen. The two ships remain entangled for another 14 hours. The Leipzig is towed back to Gotenhafen for repairs.
March 1945-The Leipzig’s guns provide support in the land battle for the port of Gotenhafen.
March 25 through March 29, 1945-The Leipzig is moved to Apenrade.
December 16, 1945-The Leipzig is taken to Wilhelmshaven, where it is loaded with gas explosives, moved into the North Sea, and sunk.
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