2011-02-28 question 'It's the unit used to date rocks using these at the base built around 1593' value $500 answer chianti round Jeopardy! Show_number 4788 category THE ASSASSINATION OF LINCOLN air_date 2010-01-01 question 'In 1999 this Cardinals pitcher of the Clue Crew reports from Chicago's Adler Planetarium.) In celebration of this national park named for its location between these 2 states' value $100 answer carpet round Double Jeopardy! Show_number 4468 category COURT MONARCHS air_date 2011-04-07 question 'This lettuce is a little \Tenderness\ the original Broadway.