| November 1892:   | 
First tests and trials. | 
| 23.02.1893:   | 
Frithjof
 is commissioned. | 
| 01.10.1893:   | 
Attached to the Reserve Division North Sea. | 
| April 1894:   | 
Fleet maneuvers. | 
| Aug - Sep 1894:   | 
Participation in the autumn fleet maneuvers. | 
| 1895 - 1898:   | 
Frithjof
 takes part in regular spring and autumn fleet maneuvers. | 
| 1899:   | 
Visit to Denmark. | 
| Autumn 1899:   | 
Attached to the 2nd Squadron. | 
| Sep 1900:   | 
Decommissioned because of a major reconstruction. The ship is cut into two pieces and a additional segment is added. | 
| 29.09.1903:   | 
Recommissioned and attached to the 2nd Squadron. | 
| 1904:   | 
Voyage to the Shetland Islands. | 
| 1905:   | 
Attached to the training squadron. | 
| May - Jun 1905:   | 
Training in the Baltic Sea. | 
| Autumn 1905:   | 
Autumn fleet maneuvers. | 
| 1907:   | 
Maneuvers in the Danzig Beight. | 
| 27.11.1907:   | 
During the autumn maneuvers, the Frithjof
 rams the small cruiser Nymphe
. | 
| 15.09.1909:   | 
Decommissioned. | 
| 12.08.1914:   | 
At the outbreak of World War I, Frithjof
 is attached to the 6th Squadron. | 
| 14.09.1914:   | 
Sent into the North Sea. | 
| -05.01.1916:   | 
The ship is used for patrol services at the Ems river. | 
| -1919:   | 
Used as a floating barrack. | 
| 1919:   | 
Sold to Arnold Bernstein shipping line where the ship was converted into a freighter. All guns engines and armor are removed, and replaced with two U-boat engines. | 
| 1930:   | 
Scrapped. |