They have their interest as related to history. Can't say much about the 1980 cent , but the 1917 harkens back to the first world war and the entry of the US into the conflict, the 1945 to the second world war, it end, the loss of Roosevelt and the end of the war with the dropping of the atomic bomb and the opening of the nuclear era. The bicentennial quarter the commemorating of the two hundredth anniversary of the declaring of out independence and the conflict to secure that independence from Great Britain, one of the "superpowers" of the era. (Of course we had the aid for France the other "superpower" of the era.)
