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How did Damian Wayne become Robin?

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Batman Heath Ledger (seated) as the Joker and Christian Bale as Batman in *The Dark Knight* (2008).

Damian Wayne is the son of Bruce Wayne and Talia al Ghul, the daughter of Batman’s adversary Ra’s al Ghul. Although his origin was first depicted in the 1987 story Batman: Son of the Demon, he was not integrated into mainstream DC Comics continuity until 2006 by writer Grant Morrison.12

Damian was trained by the League of Assassins to surpass his father, resulting in a character with immense physical prowess and intelligence but significant arrogance and a disregard for human life. Over time, he grew closer to his father and adopted Batman’s code of crime fighting.1

He officially became Robin following the events of "Final Crisis," during which Bruce Wayne disappeared. With Dick Grayson assuming the role of Batman, Damian was appointed as his partner, first appearing as the new Robin in Batman and Robin no. 1 in August 2009.13