 Nyorai kupfuurira kweiyi ndima - Mifflin akanga ari nhume kuChibvumirano chePhiladelphia cha1787uye vakasaina Bumbiro reUnited States. Ipapo akatungamirira dare rakanyora bumbiro rePennsylvania pacharo uye akava gavhuna wokutanga pashure pokugamuchirwa kwebumbiro racho. Mifflin akasiya basa rake somubati muna 1799, uye akafa gore rakatevera racho. 