Why were bonfires lit?

Bonfires were traditionally lit for various reasons, including celebrations, rituals, and to ward off evil spirits. In many cultures, they were used during festivals to symbolize purification and renewal, such as during Beltane or Midsummer. Additionally, bonfires served practical purposes, such as providing light, warmth, and a means to gather communities for social events. Over time, they have evolved into modern celebrations, like fireworks displays and community gatherings.