What's the Kennection? #231

What agate-like gem can actually be red instead of black if it has streaks of the mineral sard in it?

What ancient writing system was deciphered in 1822 by Jean-Francois Champollion, using the Rosetta Stone?

On what TV sitcom did David Cross portray the "never-nude" psychiatrist Tobias Funke?

What parts of a South African shepherd's tree can reach a record 223 feet in length?

In 1930, the Chicago Crime Commission named Al Capone "#1" of what new type of menace?

What's the "Kennection"?