On 7 May 1928 Canadian mounted police schooner RCMP St. Roch was launched at Burrard Dry Dock Shipyards.
On 7 May 1765, 104-gun first-rate ship of the line of the Royal Navy HMS Victory was launched at Chatham Dockyard.
On 7 May 1951 Gato-class submarine USS Croaker SS-246 was commissioned for the 2nd time to serve as a schoolship out of New London.
On 7 May 1864 Clipper City of Adelaide was launched at William Pile, Hay and Co.
On 7 May 1998 Cannon-class destroyer escort USS Slater DE-766 was listed on the National register of Historic places.