▁and ▁individual ▁will . ▁Republican ism ▁required ▁the ▁service ▁of ▁those ▁who ▁were ▁willing ▁to ▁give ▁up ▁their ▁own ▁interests ▁for ▁a ▁common ▁good . ▁According ▁to ▁Bernard ▁B ail yn , ▁" The ▁pres ervation ▁of ▁liberty ▁rest ed ▁on ▁the ▁ability ▁of ▁the ▁people ▁to ▁maintain ▁effective ▁checks ▁on ▁w ield ers ▁of ▁power ▁and ▁hence ▁in ▁the ▁last ▁analysis ▁rest ed ▁on ▁the ▁vig il ance ▁and ▁moral ▁stam ina ▁of ▁the ▁people ." ▁V irt uous ▁citizens ▁needed ▁to ▁be ▁strong ▁def enders ▁of ▁liberty ▁and ▁challenge ▁the ▁cor ruption ▁and ▁gre ed ▁in ▁government . ▁The ▁duty ▁of ▁the ▁virt uous ▁citiz en ▁become ▁a ▁foundation ▁for ▁the ▁American ▁Revolution . ▁ ▁Atlantic ▁history ▁Since ▁the ▁ 1 9 8 0 s ▁a ▁major ▁tr end ▁has ▁been ▁to ▁locate ▁the ▁colonial ▁and ▁revolution ary ▁er as ▁in ▁the ▁wider ▁context ▁of ▁Atlantic ▁history , ▁with ▁emphas is ▁on ▁the ▁multiple ▁interactions ▁among ▁the ▁Amer icas , ▁Europe ▁and ▁Africa . ▁ ▁Le ading ▁prom ot ers ▁include ▁Bernard ▁B ail yn ▁at ▁Harvard , ▁and ▁Jack ▁P . ▁Gre ene ▁at ▁Joh ns ▁Hop kins ▁University . ▁ ▁Turner ian ▁School ▁ ▁The ▁Front ier ▁Th esis ▁or ▁Turner ▁Th esis , ▁is ▁the ▁argument ▁advanced ▁by ▁historian ▁Frederick ▁Jackson ▁Turner ▁in ▁ 1 8 9 3 ▁that ▁the ▁origin ▁of ▁the ▁distinct ive ▁eg al itar ian , ▁dem ocr atic , ▁ag gress ive , ▁and ▁innov ative ▁features ▁of ▁the ▁American ▁character ▁has ▁been