I Am Mark Twain is the first segment of the 12th episode in Season 1 of Xavier Riddle and the Secret Museum.


Xavier is afraid he will be unable to perform his comedy show after he hurts his arm, but Mark Twain shows him that laughter can make hard things easier.



Laughter can make hard things easier.


I Am Mark Twain along with its sister episode I Am Abigail Adams, was released on the PBS Kids video app on November 11, 2019.

On November 27, these episodes aired in a mini-marathon alongside I Am Julia Child/I Am Neil Armstrong and We Are the Wright Brothers/We Are the Bronte Sisters at 9:00 AM EST.


  • References to Mark Twain's books, Tom Sawyer and Huckleberry Finn, are made throughout the episode. For example, the kids painting the fence white is a reference to what happened in Tom Sawyer, and in the opening, the kids ride a raft just like Huckleberry Finn does.
  • This is the first and only time that Yadina leads the kids to the Secret Museum instead of Xavier.
ved Episodes
Season 1
I Am Johann Sebastian Bach/I Am Marie CurieI Am Mary Shelley/I Am Harry HoudiniI Am George Washington/I Am Susan B. AnthonyI Am Isaac Newton/I Am Golda MeirI Am Winston Churchill/I Am CleopatraI Am Catherine the Great/I Am Tomioka TessaiI Am Julia Child/I Am Neil ArmstrongI Am Mark Twain/I Am Abigail AdamsWe Are the Wright Brothers/We Are the Bronte SistersI Am Helen Keller/I Am Alexander Graham BellI Am Florence Nightingale/I Am George Washington CarverI Am Leonardo da Vinci/I Am Amelia EarhartI Am Zora Neale Hurston/I Am Charles DickensI Am Jackie Robinson/I Am Anna PavlovaI Am Mary Leakey/I Am Alexander HamiltonI Am Theodore Roosevelt/I Am Eleanor RooseveltI Am Lou Gehrig/I Am Marie OwensI Am Nikola Tesla/I Am Nellie BlyI Am Maya Angelou/I Am Frederick DouglassI Am Louis Pasteur/I Am Rachel CarsonI Am Kate Warne/I Am Sir Arthur Conan DoyleI Am Cesar Chavez/I Am Dolores HuertaI Am Confucius/I Am SacagaweaI Am Mary Anning/I Am Charlie ChaplinI Am Billie Jean King/I Am Arthur AsheI Am Rosa Parks/I Am Thurgood MarshallI Am Harriet Tubman
I Am Madam President
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