In Chapter 18 of Rilla of Ingleside,

“It seems hundreds of years since those Green Gables days,” sighed Mrs. Blythe. “They belonged to another world altogether. Life has been cut in two by the chasm of war. What is ahead I don’t know–but it can’t be a bit like the past. I wonder if those of us who have lived half our lives in the old world will ever feel wholly at home in the new.”

“Have you noticed,” asked Miss Oliver, glancing up from her book, “how everything written before the war seems so far away now, too? One feels as if one was reading something as ancient as the Iliad. This poem of Wordsworth’s–the Senior class have it in their entrance work–I’ve been glancing over it. Its classic calm and repose and the beauty of the lines seem to belong to another planet, and to have as little to do with the present world-welter as the evening star.”

In Chapter 23 of Jane of Lantern Hill, Jane’s Dad talks about Helen of Troy, for whom the war described in the Iliad is fought for

“‘Out of the mouths of babes and sucklings’ . . . to be sure. I wonder if that eminently sane suggestion has ever occurred to the commentators who have agonized over it. Can you guess who the dark lady was, Jane? You know when a poet praises a woman she is immortal . . . witness Beatrice . . . Laura . . . Lucasta . . . Highland Mary. All talked about hundreds of years after they are dead because great poets loved them. The weeds are growing over Troy but we remember Helen.”

The Iliad
Homer

The Iliad is a famous epic poem by Homer, about the sack of Troy in Ancient Greece. It can be read online at Project Gutenberg