African American historian Gerald Early refers to Jack Johnson (1878-1946), the first African American heavyweight champion of the world, as the first African American pop culture icon. Johnson is a seminal and iconic figure in the history of race and sport in America. This manuscript is the translation of a memoir by Johnson that was published in French, has never before been translated, and is virtually unknown. Originally published as a series of articles in 1911 and then in revised form as a book in 1914, it covers Johnson's colorful life and battles, both inside and outside the ring, up until and including his famous defeat of Jim Jeffries in Reno, on July 4, 1910. In addition to the fights themselves, the memoir recounts, among many other things, Johnson's brief and amusing career as a local politician in Galveston, Texas; his experience hunting kangaroos in Australia; and his epic bouts of seasickness.