Join HA for October’s HA Tuesdays Happy Hour Series for a brief history of Halloween in the United States and a sweets-based glimpse into the past. Enjoy tasty treats, sweet drinks, and a stroll around the autumnal William Paca Garden. Cash bar available. 21+ only. Reservations encouraged. Cost: $10 per adult for HA Members and Volunteers, $12 per adult for Non-Members. Entry includes one drink ticket. Additional drink tickets available for purchase.