Valentine Halloween Witch Posted Gelatin Card Postcard

Halloween's modern traditions largely crystallized in the late 19th and early 20th centuries, evolving from ancient Celtic harvest festivals like Samhain, medieval Christian observances of All Saints' Day, and immigrant traditions, particularly from Ireland and Scotland, brought to America. During this period, the holiday transitioned from primarily spiritual and agricultural roots to a festive occasion centered on supernatural themes, community gatherings, and lighthearted mischief.