1: The 15th Annual Miss USA Pageant
May 21, 1966
Miss USA 1966 was the 15th Miss USA pageant, televised live from Miami Beach, Florida, on May 21, 1966.
Idaho and South Dakota did not send a delegate in 1966, making this the last Miss USA pageant in which not all states were represented The only subsequent pageant with fewer than 51 delegates in the live telecast – 1981 – resulted from a state representative being disqualified during the preliminary judging.