The United States has undoubtedly contributed the most to the modern world. They created a way to harness electricity, created the production line which made products more affordable to the everyday person, they where the first to cross the atlantic with an airplane, the first to use a submarine, the first to the moon, defeated numerous world powers, like great Britain, Germany, and Japan. The United States where also the first to split the atom, cure a number of diseases, and uncoded human DNA and RNA, so in conclusion yes the United States has contributed the most to the modern world.