Misc: What is the element symbol for Cerium?

Questions

On This Day In January 1941 - Richard ______ made his debut on radio in "The Home of the Brave.?

On This Day In January 1941 - Alice Marble made her professional tennis ______ when she defeated Ruth Hardwick of Great Britain at Madison Square Garden in New York City.?

On This Day In January 1942 - The first ______ around-the-world airline flight took place. Pan American Airlines was the company that made history with the feat.?

On This Day In January 1942 - The National Collegiate ______ Rules Committee abolished the Y formation.?

On This Day In January 1945 - The Battle of the ______ ended with 130,000 German and 77,000 Allied casualties.?