GREEN BAY, WI (WFRV) - Everyone at Local 5 wishes our community a safe and happy Halloween. Our crews caught up with some trick-or-treaters in Green Bay. Local 5's Michele McCormack is of Irish descent and shared with viewers the origins of this holiday. "It traces back to Ireland and people think I say this just because I'm of Irish descent. But it's true," McCormack told viewers of Local 5 News at 6:30 p.m. "It was an ancient Celtic festival where it was believed that this life and the afterlife are their closest on this night. I was always told you dressed up to either ward spirits away or welcome them back for a visit." Irish immigrants brought their traditions and celebrations to the United States in the 19th century. The Celts called it Samhain. That's an Irish word pronounced "SAH-win." The tradition of carving "Jack-o'-Lanterns" also started in Ireland but instead of pumpkins, they used turnips.