Because she saw that Maria had a turtle tattoo on her neck.
The Narrator
A young, upper-middle-class woman, newly married and a mother, who is undergoing care for depression. The narrator—whose name may or may not be Jane—is highly imaginative and a natural storyteller, though her doctors believe she has a “slight hysterical tendency.” The story is told in the form of her secret diary, in which she records her thoughts as her obsession with the wallpaper grows. answer is in here
Penelope basically tells the suitors that the man who can string the bow and shoot an arrow through 12 axe heads will win her hand and marriage. So disguised as a beggar Odysseus successfully strings the bow and grabs an arrow and shoots it straight through 12 axe heads. Eventually he makes his way back to Penelope but she isn’t convinced is really him. So she tells him that he can sleep outside her room on the bed on the bed that Odysseus carved. Oddysseus snapped and asked her who moved the his bed that was carved straight from the roots of a olive tree that the room was built around. Penelope knew that only he would have known about the bed so she instantly knew it was him.
