Robert Frost's 1920 poem begins "Some say the world will end in" what, "Some say in ice"?

A 1914 $5 Federal Reserve note showed the Pilgrims landing and which explorer sighting land? A 1915 film was named for Charlie Chaplin's most famous character. What was it called? A 1918 treaty said that if Monaco's royal family produced no male heirs, Monaco would come under which country's rule? George Bernard Shaw's 1919 "Heartbreak House", subtitled "A Fantasia in the Russian Manner", was an homage to which pla… Which name is shared by a 1920s dance and a city in South Carolina? Which Verdi opera, set in ancient Egypt, premiered in Cairo in 1871? Which 1927 Jerome Kern musical follows performers on a Mississippi River boat? A 1920s hit by Sammy Fain and Irving Kahal said to "Let a" what "be your umbrella"?