▁such ▁as ▁the ▁Am oco ▁Cad iz ▁oil ▁sp ill ▁or ▁the ▁E ri ka ▁oil ▁sp ill ▁and ▁water ▁poll ution ▁because ▁of ▁int ensive ▁p ig ▁far ming ▁fav oured ▁new ▁movements ▁to ▁protect ▁the ▁natural ▁her itage . ▁ ▁Government ▁and ▁politics ▁ ▁Trad itional ▁sub div isions ▁ ▁Brit t any ▁as ▁a ▁political ▁entity ▁disappeared ▁in ▁ 1 7 9 0 , ▁when ▁it ▁was ▁divided ▁into ▁five ▁départ ements . ▁The ▁Bre ton ▁départ ements ▁more ▁or ▁less ▁correspond ▁to ▁the ▁nine ▁Catholic ▁dioc eses ▁that ▁appeared ▁at ▁the ▁beginning ▁of ▁the ▁Middle ▁A ges . ▁They ▁were ▁often ▁called ▁" p ays " ▁or ▁" bro " ▁(" country " ▁in ▁French ▁and ▁Bre ton ) ▁and ▁they ▁also ▁served ▁as ▁fis cal ▁and ▁military ▁districts . ▁Brit t any ▁is ▁also ▁divided ▁between ▁Lower ▁Brit t any ▁(" B asse ▁Bret agne " ▁and ▁" Bre iz h ▁I zel "), ▁corresponding ▁to ▁the ▁western ▁half , ▁where ▁Bre ton ▁is ▁tradition ally ▁spoken , ▁and ▁Upper ▁Brit t any ▁(" Ha ute ▁Bret agne " ▁and ▁" Bre iz h ▁U hel "), ▁corresponding ▁to ▁the ▁eastern ▁half , ▁where ▁Gal lo ▁is ▁tradition ally ▁spoken . ▁The ▁historical ▁Bre ton ▁dioc eses ▁were : ▁ ▁Upper ▁Brit t any : ▁The ▁Pays ▁n ant ais , ▁around ▁N antes , ▁corresponding ▁to ▁the ▁Lo ire - At lant ique ▁département . ▁The ▁Pays ▁ren na is , ▁around ▁R ennes , ▁forming ▁part