On 26 November 1969, 37th President Richard Nixon signed an amendment to the Military Selective Service Act of 1967 that established conscription based on random selection (lottery). The first draft lottery was held on 1 December 1969; it determined the order of call for induction during calendar year 1970, for registrants born between 1 January 1944, and 31 December 1950. The highest lottery number called for possible induction was 195. The second lottery, on 1 July 1970, pertained to men born in 1951. The highest lottery number called for possible induction was 125. The third was on 5 August 1971, pertaining to men born in 1952; the highest lottery number called was 95.