Give one-word substitution to the following: Life history of a man written by…

Step 1: The question asks for a one-word substitution for 'Life history of a man written by himself'. Step 2: 'Bibliography' refers to a list of books or sources, not a personal life story. So, it is incorrect. Step 3: 'Calligraphy' is the art of beautiful handwriting, which is unrelated to writing a life story. So, it is incorrect. Step 4: 'Biography' means a life story written by someone else, not by the person himself. So, it is incorrect. Step 5: 'Autobiography' means a life story written by the person himself, which matches the given phrase exactly. Therefore, the correct answer is 'Autobiography'.