▁its ▁cors airs , ▁Br est ▁was ▁a ▁major ▁base ▁for ▁the ▁French ▁Navy ▁and ▁N antes ▁fl our ished ▁with ▁the ▁Atlantic ▁slave ▁trade . ▁On ▁its ▁side , ▁the ▁in land ▁provided ▁h emp ▁ro pes ▁and ▁canvas ▁and ▁lin en ▁sheets . ▁However , ▁Col bert ism , ▁which ▁encourag ed ▁the ▁creation ▁of ▁many ▁fact ories , ▁did ▁not ▁favour ▁the ▁Bre ton ▁industry ▁because ▁most ▁of ▁the ▁royal ▁fact ories ▁were ▁opened ▁in ▁other ▁provinces . ▁Moreover , ▁several ▁conflicts ▁between ▁France ▁and ▁England ▁led ▁the ▁latter ▁to ▁rest rain ▁its ▁trade , ▁and ▁the ▁Bre ton ▁economy ▁went ▁into ▁re cess ion ▁during ▁the ▁ 1 8 th ▁century . ▁ ▁Two ▁significant ▁revol ts ▁occurred ▁in ▁the ▁ 1 7 th ▁and ▁ 1 8 th ▁centuries : ▁the ▁Revol t ▁of ▁the ▁pap ier ▁tim br é ▁( 1 6 7 5 ) ▁and ▁the ▁Pont cal le c ▁consp i racy ▁( 1 7 1 9 ). ▁Both ▁arose ▁from ▁attempts ▁to ▁resist ▁central isation ▁and ▁assert ▁Bre ton ▁constitution al ▁exceptions ▁to ▁tax . ▁ ▁Many ▁Bret ons ▁crossed ▁the ▁Atlantic ▁to ▁support ▁the ▁American ▁War ▁of ▁Independ ence . ▁These ▁included ▁many ▁sail ors ▁such ▁as ▁Arm and ▁de ▁K ers aint ▁and ▁soldiers ▁such ▁as ▁Charles ▁Arm and ▁T uff in , ▁mar quis ▁de ▁la ▁Rou ë rie . ▁ ▁Since ▁ 1 7 8 9 ▁ ▁The ▁Duch y ▁was ▁leg ally ▁abol ished ▁during ▁the ▁French ▁Revolution ,