ag wan ath , ▁ 8 8 , ▁Australian ▁ge ologist ▁who ▁discovered ▁the ▁ 4 0 0 ▁million ▁year ▁old ▁foss ils ▁of ▁an ▁ext inct ▁plant ▁of ▁the ▁genus ▁Bar ag wan ath ia , ▁named ▁in ▁his ▁honor ▁ ▁September ▁ 2 1 , ▁ 1 9 6 6 ▁( W ed nes day ) ▁By ▁a ▁vote ▁of ▁ 4 9 - 3 7 , ▁the ▁United ▁States ▁Senate ▁failed ▁to ▁give ▁the ▁necessary ▁two - third s ▁appro val ▁for ▁a ▁proposed ▁am end ment ▁to ▁the ▁U . S . ▁Constitution ▁that ▁would ▁have ▁permitted ▁volunt ary ▁prayer ▁in ▁public ▁schools . ▁ ▁The ▁resolution ▁had ▁been ▁proposed ▁by ▁Senator ▁Ever ett ▁Dir ks en ▁of ▁Illinois , ▁and ▁would ▁have ▁required ▁yes ▁votes ▁from ▁ 5 8 ▁of ▁the ▁ 8 6 ▁Sen ators ▁present ▁before ▁it ▁could ▁be ▁sent ▁to ▁the ▁individual ▁states ▁for ▁rat ification . ▁The ▁last ▁peace keep ing ▁forces ▁from ▁the ▁Organ ization ▁of ▁American ▁States ▁were ▁with dra wn ▁from ▁the ▁Domin ican ▁Republic , ▁slightly ▁less ▁than ▁ 1 7 ▁months ▁after ▁the ▁U . S . ▁Army ' s ▁inter vention ▁in ▁the ▁Domin ican ▁Civil ▁War ▁on ▁April ▁ 3 0 , ▁ 1 9 6 5 . ▁ ▁The ▁last ▁tro op ▁cont ing ents ▁had ▁been ▁from ▁the ▁United ▁States , ▁Brazil , ▁Costa ▁Rica , ▁El ▁Salvador , ▁H ond uras , ▁Nic ar agua ▁and ▁Par agu ay . ▁The ▁ 1 9