What historical period is known for post-Civil War industrial growth and wealth disparity?

Gilded Age

Which colorful insect has spots on its wings and is considered lucky? What popular board game challenges players to determine a code made of colored pegs hidden behind a screen? What duo, originally named Tom and Jerry, later became revival folk-rock icons in the 1960s? Who released the single "Super Bass" in 2010? Who captured Fort Ticonderoga early in the Revolutionary War alongside Benedict Arnold?