ation ▁of ▁the ▁law ▁that ▁gave ▁Ros ario ▁city ▁status , ▁the ▁governor ▁of ▁Santa ▁Fe ▁José ▁María ▁C ull en , ▁O ro ño ' s ▁brother - in - law , ▁named ▁him ▁political ▁chief ▁of ▁the ▁city . ▁O ro ño ▁created ▁a ▁vig il ance ▁service ▁for ▁the ▁city . ▁Under ▁his ▁administration ▁the ▁Provin cial ▁Hospital ▁of ▁Ros ario ▁was ▁opened . ▁The ▁Municip ality ▁of ▁Ros ario ▁hon oured ▁his ▁legacy ▁by ▁ren aming ▁a ▁major ▁street ▁as ▁O ro ño ▁Bou lev ard ▁in ▁ 1 9 0 4 . ▁ ▁T ogether ▁with ▁Marcel ino ▁Fre y re , ▁O ro ño ▁represented ▁Santa ▁Fe ▁in ▁the ▁Assembly ▁that ▁wrote ▁the ▁Argent ine ▁Constitution ▁in ▁ 1 8 5 3 . ▁ ▁In ▁ 1 8 6 2 ▁O ro ño ▁was ▁elected ▁member ▁of ▁the ▁Chamber ▁of ▁Deput ies , ▁but ▁in ▁ 1 8 6 5 ▁he ▁res igned , ▁after ▁being ▁chosen ▁to ▁replace ▁Pat ric io ▁C ull en ▁as ▁governor ▁of ▁Santa ▁Fe ▁Province . ▁In ▁the ▁latter ▁office ▁he ▁focused ▁on ▁the ▁institution al ization ▁of ▁the ▁province . ▁When ▁he ▁finished ▁his ▁mand ate ▁in ▁ 1 8 6 8 ▁he ▁was ▁elected ▁national ▁sen ator , ▁and ▁from ▁his ▁seat ▁he ▁promoted ▁the ▁expansion ▁and ▁population ▁of ▁the ▁country . ▁ ▁After ▁a ▁period ▁of ▁political ▁in activity , ▁O ro ño ▁was ▁named ▁director ▁of ▁the ▁Office ▁of ▁Land s ▁and ▁Col on ies ▁of ▁the