▁ ▁The ▁organisation ▁was ▁established ▁on ▁ 2 2 ▁September ▁ 1 9 2 4 ▁at ▁the ▁initi ative ▁of ▁a ▁distinguished ▁group ▁of ▁leaders ▁led ▁by ▁Mario ▁Du arte . ▁ ▁The ▁early ▁clubs ▁included : ▁ ▁Ass ocia ção ▁Des port iva ▁O var ense ▁Ass ocia ção ▁Des port iva ▁San jo an ense ▁Cl ube ▁dos ▁Gal itos ▁( A ve iro ) ▁F og ue ir ese ▁Foot ▁Ball ▁Cl ube ▁Pa ços ▁Brand ão ▁Foot ▁Ball ▁Cl ube ▁Soci ed ade ▁Rec re io ▁Art íst ico ▁( A ve iro ) ▁Sport ▁Cl ube ▁An ad ia ▁Sport ▁Cl ube ▁Be ira - Mar ▁Sport ing ▁Cl ube ▁B ust elo ▁Sport ing ▁Cl ube ▁Esp inho ▁Sport ing ▁Cl ube ▁O live ir ense ▁Un ião ▁Des port iva ▁O live ir ense ▁ ▁The ▁first ▁formal ▁meeting ▁of ▁the ▁Board ▁was ▁held ▁on ▁ 1 4 ▁November ▁ 1 9 2 4 . ▁ ▁Compet itions ▁Several ▁A ve iro ▁clubs ▁comp ete ▁in ▁the ▁three ▁national ▁levels ▁of ▁the ▁Portuguese ▁football ▁league ▁system ▁in ▁compet itions ▁run ▁by ▁the ▁Portuguese ▁League ▁for ▁Professional ▁Football ▁( Pr ime ira ▁Liga / L iga ▁N OS ▁and ▁Segunda ▁Liga ) ▁and ▁Portuguese ▁Football ▁Federation ▁( Cam pe onato ▁Nacional ▁de ▁Senior es ). ▁ ▁In ▁the ▁ 2 0 1 5 / 1 6 ▁season , ▁FC ▁Ar ou ca ▁play ▁in ▁the ▁Prime ira ▁Liga / L iga ▁N OS , ▁while ▁CD ▁Fe