The Greek myth [the Rape of Persephone] has been recounted for thousands of years in hundreds of languages, scores of countries and countless works of art. It's considered a cultural touchstone for Western civilization: a parable about power, lust and grief.

Now, however, it could be getting a treatment it's never had before: a trigger warning.

In an op-ed in the student newspaper, four Columbia University undergrads have called on the school to implement trigger warnings -- alerts about potentially distressing material -- even for classics like Greek mythology or Roman poetry.

"Ovid's 'Metamorphoses' is a fixture of Lit Hum, but like so many texts in the Western canon, it contains triggering and offensive material that marginalizes student identities in the classroom," wrote the four students, who are members of Columbia's Multicultural Affairs Advisory Board. "These texts, wrought with histories and narratives of exclusion and oppression, can be difficult to read and discuss as a survivor, a person of color, or a student from a low-income background."