When we are babies our world is confined by our crib. As we grow older our
world begins to expand, first to our playpen, then to our room, our house, our block, our town, our
city, our state, our country and finally to our earth and our universe. This is a summary of
round-the-world flights and of pilots and passengers and philatelic
documentation that they carried on their journeys round-the-world.
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