Many people have noticed shocking similarities between DC Comic’s Doom Patrol and Marvel’s X-Men, and it is hard to tell who copied who.
The answer, however, is neither. It is most likely that both the Doom Patrol and X-Men, despite being published in the same year, were developed by DC and Marvel, respectively, completely independent of each other. The similarity of the ideas are uncanny, but perhaps it was the time in which they were published that inspired the companies to create characters that revolved around social struggles. In addition, considering the fact that X-Men hit stores only three months after Doom Patrol expresses that the X-Men were more than likely far into development before Marvel even knew that the Doom Patrol existed, further proving that the similarities between the comics is completely coincidental.