This is Second Suite in F for Military Band by Gustav Holtz. It is one of the first pieces that my college wind ensemble played after I met my future husband. He had the euphonium solo that occurs in the piece. It remains one of my favorites.
"Slavery ended in medieval Europe only because the church extended its sacraments to all slaves and then managed to impose a ban on the enslavement of Christians (and of Jews). Within the context of medieval Europe, that prohibition was effectively a rule of universal abolition. "— Rodney Stark