Read the following passage and answer if the question is true or false.
Passage: She became well-known with the publication of her memoirs, beginning with The English Governess at the Siamese Court (1870), which chronicled her experiences in Siam (modern Thailand), as teacher to the children of the Siamese King Mongkut. Leonowens' own account has been fictionalised in Margaret Landon's 1944 best-selling novel Anna and the King of Siam, as well as films and television series based on the book, most notably Rodgers and Hammerstein's 1951 hit musical The King and I.

Question: was the king and i based on a true story?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
True. The King and I is based on the true story of Anna Leonowens and her experiences in Siam as a teacher to the children of