When did the story happen?

M: Mum, I’m getting bored. Could you tell me a story?
F:  Well...It goes like this. The Paris Opera House was a huge building, with seventeen floors, of which seven were below the ground. Underneath the building there was a dark lake. In the middle of this lake was an island, and on that island, one hundred years ago, lived the Phantom.
M: Why was he called Phantom?
F:  Because when he was born, he was so ugly that his own mother made him wear a mask, and force him to leave home while still a child. Years later, he made a secret home for himself inside the Pads Opera House. Nobody knew who he was, yet people could hear him singing at night. So they called him Phantom.
M: Could he sing well?
F:  Yes, wonderfully. He even used this voice to gain power over Christine, a beautiful young singer at the Opera.
M: Did they fall in love with each other?
F:  I can only say the Phantom loved Christine very much. And he wanted her for himself. In the end, he kidnapped her from the stage, in front of the whole audience.
M: Wasn’t there anyone saving her?
F:  Yes, a man called Raoul. He loved Christine, too. But the Phantom captured him and kept him in a prison. In the Phantom’s house, Christine pulled off his mask. When she saw a horrible face with no nose and yellow eyes, she was shocked. But then she felt sorry for him. She gently kissed his face.
M: Did the Phantom become a handsome man?
F: No, sweet. But Christine’s kiss made him cry with joy for no one had ever touched him before. He released Raoul, and told him to take Christine away, to safety. Then he disappeared magically, and was never seen again.