Who was the first player inducted into the NFL Hall of Fame?

Sammy Baugh

What aquatic mammal uses air bubbles to encircle fish for an easier catch? Who succeeded Queen Elizabeth I to the English throne? Who founded Hull House in Chicago to aid immigrants and the poor? Which activist led farm-worker boycotts for better conditions in California in the 1960s and 1970s? Which explorer named the Pacific Ocean for its calm waters?