You create a fictional history to go with that address.
It is clear, however, that he is an important figure in the fictional history of the Flanaess.
Batman's fictional history, which was created years after the character himself, was dark.
This is not a problem related to any historical information - only a lack of internal consistency in the fictional history.
The franchise features a fictional history of Earth/Humanity after the year 1999.
The community also invented a fictional history of the Sanctum, explaining what happened to the previous six.
He has more than thirty novels and three accomplishments in the sphere of fictional history to his credit.
The truth is that historical fiction has its roots in fictional history.
The fictional history of the world stretches back some twelve thousand years.
The fictional history of Westeros shows how each religion evolved.