, ▁approximately ▁two ▁third s ▁of ▁the ▁workers ▁in ▁the ▁municipality ▁were ▁commut ers . ▁ ▁Sant ' A bb ond io ▁According ▁to ▁a ▁document ▁from ▁ 1 3 5 8 , ▁the ▁settlement s ▁of ▁Mart ign oni ▁de ▁Ron co , ▁Ron co ▁di ▁S op ra , ▁Sc im iana , ▁Cal g iano , ▁Cav iano ▁and ▁S ca iano ▁had ▁already ▁grown ▁up ▁around ▁the ▁church ▁of ▁SS ▁Abb ond io ▁e ▁Andrea . ▁ ▁The ▁church ▁itself ▁is ▁first ▁mentioned ▁in ▁ 1 3 6 4 . ▁ ▁It ▁was ▁part ▁of ▁the ▁parish ▁of ▁V ira , ▁when ▁it ▁became ▁the ▁center ▁of ▁an ▁independent ▁parish . ▁ ▁In ▁ 1 7 7 4 , ▁the ▁villages ▁of ▁Ron co ▁de ▁Mart ign oni , ▁Ron co ▁di ▁S op ra ▁and ▁Sc im iana ▁broke ▁away ▁from ▁Sant ' A bb ond io ▁to ▁join ▁the ▁vice ▁parish ▁of ▁Ger ra . ▁ ▁Then , ▁in ▁ 1 8 5 0 , ▁they ▁were ▁followed ▁by ▁the ▁settlement ▁of ▁Cav iano ▁and ▁S ca iano . ▁ ▁The ▁parish ▁church ▁of ▁the ▁new , ▁smaller ▁parish ▁of ▁Sant ' A bb ond io ▁was ▁re built ▁in ▁the ▁classic ist ▁style ▁in ▁ 1 8 5 2 - 5 3 . ▁ ▁The ▁local ▁economy ▁was ▁based ▁mostly ▁on ▁agricult ure ▁and ▁past oral ism . ▁ ▁In ▁the ▁ 1 9 th ▁Century , ▁the ▁em igration ▁of ▁decor ators , ▁pain ters