What does it mean to be American?

What it means to be American
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<Tab/>People in the United States differ greatly in beliefs, physical appearances, and heritage; yet we all call ourselves Americans. We feel prouder than ever to say "I am American," raising American flags, wearing symbolic shirts, and showing true patriotism. But what really makes us American? What is the common factor that unites us? Is it our pride in our country? Our culture and style? Or maybe it is our liberties granted to us by the constitution? America spans three centuries and over eight generations. A lot has transp…