What was Final Jeopardy for March 30 2011?

Answer 1

The final category was INFLUENTIAL 19TH CENTURY THINKERS

The Clue was: At the University of Bonn in 1836 he was wounded by a duel with a member of an aristocratic Prussian Fraternity

The answer was: Who was Karl Marx

Answer 2

The category was Toys

The clue was "Original sets of this toy that was first sold in 1918 included plans for building Uncle Tom's Cabin"

The answer was What was Lincoln Logs

A link to the Jeopardy site that has a record of this game has been added under related links

Toys was the final jeopardy category aired on April 30 2010. Lincoln Logs was the answer to the question about the 1918 set that was first used to built Uncle Tom's Cabin.

Answer 3

January 30 2010 was a Saturday encore performance and the date of the original episode is not known.