13 March 1961 – McDonnell delivers the last of 807 F-101 Voodoos to the Air Force.
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The F-101 was initially designed by McDonnell Aircraft Corporation as a long-range bomber escort (known as a penetration fighter) for the USAF’s Strategic Air Command (SAC).”
Ultimately, “the Voodoo was instead developed as a nuclear-armed fighter-bomber for the USAF’s Tactical Air Command (TAC), and as a photo-reconnaissance aircraft based on the same airframe.
The Voodoo’s career as a fighter-bomber was relatively brief, but the reconnaissance versions served for some time. Along with the US Air Force’s Lockheed U-2 and US Navy’s Vought RF-8 Crusaders, the RF-101 reconnaissance variant of the Voodoo was instrumental during the Cuban Missile Crisis and saw extensive service during the Vietnam War. Interceptor versions served with the Air National Guard until 1982, and in Canadian service, they were a front line part of NORAD until their replacement with the CF-18 Hornet in the 1980s. 
Source: Wikipedia