BB: Masks worn by doctors during the Plague. The protective suit of the plague doctor consisted of a heavy fabric overcoat that was waxed, a mask with glass eye openings and a cone nose shaped like a beak to hold scented substances and straw.
Samhain - aka Halloween::Gaelic festival held Oct 'Samhain' is derived from Old Irish meaning "summer's end." It marked the end of the harvest and of the "lighter half" of the year and the start of the "darker half".
People have been dressing up in costume for Halloween for many years. Here is a collection of vintage photos showing Halloween costumes through the years. These costumes look a lot scarier than some of the costumes we see now.
"In there stepped a stately raven, of the saintly days of yore. Not the least obeisance made he; not a minute stopped or stayed he; But with mien of lord or lady, perched above my chamber door;" Gustave Doré: The Raven Illustrations.