Misc: which candy was selling poorly until the movie E.T. popularized it?

Questions

On This Day In January 1920 - The League of ______ held its first meeting in Geneva.?

On This Day In January 1926 - Fritz Lang's film "______ " was first shown, in Berlin.?

On This Day In January 1928 - The Soviet Union ordered the exile of Leon______ .?

On This Day In January 1943 - U.S. President Franklin D. Roosevelt sailed from Miami, FL, to Trinidad thus becoming the first ______ President to visit a foreign country during wartime.?

On This Day In January 1943 - The quiz show, "The ______ Half," was heard for the first time on Mutual Radio.?