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What is Route 66 most famous for?

Route 66 is famous because it was one of the first national highways in the United States and became a major route for commerce and long-distance travel. Known by the mid-1930s as the β€œMain Street of America,” it shaped roadside businesses and local economies. It became a major route for migration during the Dust Bowl drought, which affected parts of Oklahoma, Texas, Kansas, Colorado, and New Mexico from 1930 to 1936, and its portrayal in song and television made it an enduring cultural icon.