What year was the first modern set of headphones developed?

More Questions:

The 2007 rule banning suspended NFL players from signing with the CFL was named for what player?

What team did Steve Nash play for between his two stings with the Phoenix Suns?

What golfer is nicknamed the "Golden Bear"?

What author created the character of Tom Brown?

According to the full title of Richard Wagner's "Ring Cycle', the fabulous ring belongs to what race of dwarves?

What is the five-letter name for a young dog?

What actress shaved her head for her role in the movie "Caged"?

Who's responsible for "The Ballad of Thunder Road"?

What is the name of Olive Oyl's father?

In Disney's movie "The Lion King', what does "Hakuna Matata" mean?

In "Jurassic Park', the park is located on an island off the coast of what country?

The first Olympic Games were held in whose honor?

What year was Stonehenge added to UNESCO's list of World Heritage sites?

Which U.S. President ended his country's participation in the Vietnam War?

In Greek mythology, what were Medusa, Stheno and Euryale collectively known as?