The Angel (Thomas Halloway, often shortened to Tom Halloway) is a fictional character, a superhero appearing in American comic books published by Marvel Comics. Created by artist Paul Gustavson and an unconfirmed writer during the Golden Age of Comic Books, the Angel first appeared in "Marvel Comics" #1 (Oct. 1939), the first publication of Marvel Comics' predecessor, Timely Comics.
Paul Gustavson created the Angel in 1939.
It's neither definitely correct nor definitely incorrect because we only know that the character first appeared in a comic book in 1939, but that doesn't necessarily mean he was created in 1939. The system probably got it wrong because it just saw "1939", "created", "the Angel", and "Paul Gustavson" in the sentence and found the corresponding words in the text, so it judged it to be correct without understanding the implications of the question.