May 11, 2020

This Day in Halloween: The second day of the annual three-day Roman festival of Lemuria, a precursor to Halloween. / Illustration by CJ Lundblad

The second day of Lemuria, the Roman festival of purging evil spirits from the home. A precursor, like the Celtic festival of Samhain, to Halloween. The festival traditionally fell on May 9, 11 and 13.