| Year | Date | Historical Events |
| 1944 | Aug 24 | Keel laid down by the Portsmouth Naval Shipyard, Kittery, ME. |
| 1945 | Jan 1 | Launched. |
| | Apr 28 | Commissioned with CDR. Slade D. Cutter in command.
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| | Jun 3 | Following shakedown off the New England coast, Requin departed Portsmouth, NH. enroute to Hawaii. |
| | Jul 13 | Requin joined Pacific Fleet at Balboa, Panama Canal Zone. |
| | Jul 31 | Requin arrived at Pearl Harbor, HI. |
| | Aug 14 | Two weeks after her arrival, three days before she was to begin her first war patrol, World War II ended and Requin was recalled and ordered back to the Atlantic.
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| | Sep 18 | Requin arrived at Staten Island, New York, to begin what would be in the words of Commander Cutter, "a dull and boring assignment," essentially becoming a target for sonar school ships. |
| 1946 | Jan 6 | Requin sailed for Key West, FL., where she joined SubRon 4. August through November of that year were spent at the Portsmouth Naval Shipyard in Kittery, ME., being converted to a radar picket submarine. |
| 1947 | Oct 1 | Requin moved North for exercises with her sister radar picket submarine Spinax (SS-489. |
| | Nov 13 | Requin crossed the Arctic Circle. |
| 1948 | Jan 20 | Requin was given hull classification symbol SSR-481. She began modification to the MIGRAINE II Radar Picket configuration at the Portsmouth Naval Shipyard in Kittery, ME. |
| | Dec 1 | Requin departed the shipyard after completing trials with new radar equipment and reported to New London, CT., for duty with Submarine Squadron 8.
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| 1949 | May 1 | Requin sailed East for her first deployment with the Sixth Fleet. |
| | May 14 | Arriving at Gibraltar, Requin operated in the Mediterranean Sea. |
| | Jun 30 | Soon after her return to New London, Ct., Requin was transferred to Norfolk, VA., for duty with SubRon 6. Into the spring of 1950, she operated in the western Atlantic, ranging from Nova Scotia to the West Indies. |
| 1951 | Jan 15 | In the Mediterranean from mid-January to mid-May 1951, Requin resumed operations off the East Coast and in the Caribbean Sea on her return. |
| 1952 | Aug 1 | Requin was back in European waters. During September, she visited the United Kingdom; then, in October the submarine transited the Strait of Gibraltar for her regular Sixth Fleet duty.
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| 1953 | Jan 1 | Requin maintained her schedule of Second and Sixth Fleet operations, but at the end of the year put into Philadelphia, PA., for an extensive modernization overhaul that among other changes removed her last antiaircraft cannon. |
| 1955 | May 2 | Requin sailed for her 5th Mediterranean deployment. Detached at the end of July, she returned to Norfolk, VA. and remained on the East Coast, with cruises to the Caribbean, until November 1957 when she resumed duty with the Sixth Fleet.
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| 1959 | Jun 1 | From June through August 1959 the Charleston Navy Yard in South Carolina removed all Requin’s radar equipment and improved her streamlining. |
| | Aug 15 | Upon her conversion to Fleet Snorkel configuration, Requin was given hull classification symbol SS-481, and rejoined SubRon 6 in Norfolk, VA. for operations as a normal attack submarine, a role she retained until her decommissioning.
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| 1963 | Sep 20 | Requin completed her 5000th dive. |
| 1966 | Oct 1 | Operation UNITAS VII called for Requin to cruise around the South American continent for exercises with various South American navies. |
| 1967 | Apr 4 | Requin departed for her last 6th Fleet deployment. |
| 1968 | May 28 | Requin departed Norfolk, VA., as part of the search effort for the missing nuclear attack submarine Scorpion (SSN-589). |
| | Jun 29 | Requin was reclassified as AGSS-481. |
| | Dec 3 | Requin was decommissioned. |
| 1969 | Feb 1 | Requin was towed to St. Petersburg, FL.and served there as a Naval Reserve Training ship. |
| 1971 | Jun 30 | Requin was reclassified as IXSS-481. |
| | Dec 20 | Requin was struck from the Naval Register.
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| 1972 | Jun 17 | Requin was transferred to Tampa, Florida, as a tourist attraction. She remained in this role until 1986, when she was closed down due to lack of funding and support. For four years she remained abandoned at the pier.
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| 1990 | Feb 21 | Senator John Heinz introduced Senate Bill S.2151, which allowed Requin to be transferred as an exhibit for the Carnegie Science Center in Pittsburgh, PA. |
| | May 24 | Requin was towed to Tampa Shipyard for dry docking and hull repairs, in preparation for her move to Pittsburgh. |
| | Aug 7 | Requin left International Ship Repair in Tampa, FL. under tow to Baton Rouge, LA. |
| | Aug 11 | Requin was lifted onto barges and began her ride up the Mississippi River and Ohio River to Pittsburgh, PA. |
| | Sep 4 | Requin arrived at the Carnegie Science Center, Pittsburgh, PA. |
| | Oct 20 | Requin was dedicated as a memorial and museum exhibit, and opened for tours.
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