Famous AmericansThe final category is Famous Americans.
The Final Jeopardy category for August 16 2010 was Medicine
The Final Jeopardy category for June 16 2010 was Modern Materials
The Jeopardy Archive claims it is only the second time that it happened in the Show's history In the old Art Fleming Jeopardy they have ended with no contestants able to play final Jeopardy because everyone's score was zero or below. That Makes the March 16 2011 Game result of only one contestant able to play Final Jeopardy not a record or a Tie of an existing record. The Jeopardy Archive does note that it is the second single final Jeopardy in the Show's history see related link
The Final Jeopardy category for July 16 2010 was No 1 Pop Hits
2011 MEMOIRSHe titled his 2011 memoir "Harold: The Boy Who Became Mark Twain"Hal Holbrook
The answer is What is posthaste?
That was a Saturday
The Final Jeopardy category for September 16 2010 was Word and Phase OriginsThe category was Word and Phase Origins
The final category was Opera
The answer was John Keats
WORD HISTORYA Roman legal term for a debtor sentenced to servitude is the origin of this term for a slave to a viceaddict