By Deepti Hajela NEW YORK (AP) — The aspirations cut a wide swath through American history since 1776 — from the “All men are created equal” of the Declaration of Independence and the “We the people” of the Constitution, to the “indivisible, with liberty and justice for all” of the Pledge of Allegiance. One can find it in the country’s name — the UNITED States of America — and in the sentiment of the motto written in Latin on its coins and one-dollar bills: E Pluribus Unum, or “out of many, one.” The effort has been optimistic and unrealistic, successful and a failure, enduring as an American ideal during moments when citizens struggled — and struggle today — to practice it. How has the notion of unity in American society…









