The word franklin comes from the Middle English "frankeleyn" which means free man. It describes the emergence of a class of people neither gentry nor serf...free men who owned their own property and were beholden to no one. The Magna Carta (wow, the people force the king to give up power!) said that these free men could not be controlled or punished "except by the lawful judgement of his equals or the law of the land" Centuries later, when America was colonized, these rights formed the basis for the society that became the United States.
Which brings us to the second reason. Benjamin Franklin was, in our opinion, the greatest American; and the fruits of his life's work has done much to define our world to this day. Scientist, author, civic organizer, diplomat, sworn enemy of the authoritarian...he was the very definition of revolutionary. Hard work, civic virtue, tolerance and free thought were his hallmarks. Just the kind of guy we could all emulate.