What proof does eurycleia give penelope to convince her that odysseus has returned?

Odysseus had returned to his home in Ithaca but he was disguised as a beggar. Eurycleia, one of Penelope's maids, recognices him when she was bathing him and saw a particular scar he had.

Odysseus had a scar above his knee, caused by a boar while he was hunting with his grandfather. This testimony of the scar is what Eucycleia presents to Penelope to reveal Odysseus presence in Ithaca.

honestly, school in itself just seems to be a huge waste of time. a lot of people graduate but still end up not doing anything in college anyways, which really makes the whole point of graduating seem useless. i'd rather not bring anyone's hopes up then. what i'd recommend is for whoever's reading this to simply drop out.

i mean, kanye did it. he said something along the lines of, "don't let society tell you what to do." now, he's obviously a very successful person, and since his album is called the college dropout i guess he never really had to go through all that nonsense in order to become a millionaire. the same goes for anyone else then.