Title: American Idol.
Question: What song did the two finalists release?

Title: Humanism.
Question: What is the only alternative to bigotry and persecution on many occasions?

Title: Hydrogen.
Question: What do physical and chemical properties of hydrogen depend on?

Title: New York City.
Question:
In the 1930s, New York City had more than 10 million people becoming the first what in history?