Read the text and determine if the sentence is true (see options at the end):

Tsunetane Oda (小田常胤 , Oda Tsunetane , March 10, 1892 – February 11, 1955) was a judoka who was influential in the development of Kosen judo. His correct name was Join Oda, but through a misinterpretation of the kanji 常胤 he is more commonly known as Tsunetane.

Sentence: Tsunetane Oda started studying judo when he was 17 years old.
Options are: -- Yes -- It's impossible to say -- No