Narnia was created about the year 1033 b.c. of earth time and Digory must have time traveled back to see its creation. It seems hard to comprehend that when he and the pevensies cam to narnia that it was a parallel present time because there was 2,555 Narnia years all together and seems hard how it would all fit from 1900 to 1949 of earth time. Best seems,they time traveled back to Narnia . I think about the year 1033 b.c it was created,and by 33b.c.,the narnia tree had withered and the witch placed her spell of one hundred years of winter on it. By 33.a.d.,the Pevensies first came and spring came.