In 1865, Centerville was selected as the county seat. A post office named Tuscola Center was established on April 25, 1866. To address the confusion caused by the differing names, community leaders met in 1868, and at the suggestion of William E. Sherman selected the name Caro, based on a variant spelling of the Egyptian city of Cairo.
In 1865, centErvilLe wAs Selected aS thE CouNty seat. a poSt offiCE Named TUscoLa CENteR wAS estAblisheD On aPril 25, 1866. TO address the confusION caused bY tHe DifFering nAmES, comMunity lEaDerS MeT in 1868, And At tHe sugGeStIOn of wilLiAm E. shErMaN seLeCTEd the nAme CARo, BASeD oN a Variant spellIng of The eGYptIan city Of cAirO.