CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The Navy's[1] DANFS history gives 'launched on 21 January 1954 and sponsored by Mrs. Dwight D. Eisenhower'; Wikipedia[2] says 'She was christened on 21 January 1954 and launched into the Thames River, sponsored by Mamie Eisenhower'.On 21 January 1954 Mamie Eisenhower christened USS Nautilus (SSN-571) at the Electric Boat yard in Groton, Connecticut, the first nuclear-powered submarine, built by General Dynamics.
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