St John’s Eve is observed worldwide on the evening of June 23, preceding the feast of Saint John the Baptist on June 24. This celebration is closely linked to Midsummer and the summer solstice, with origins in ancient practices where bonfires were lit to ward off evil spirits. As Christianity spread, Midsummer evolved into St John’s Day, while many pagan traditions, such as lighting bonfires, were retained. Celebrations typically begin on St John’s Eve and continue throughout the night, featuring activities like dancing, singing, and communal bonfires. In some regions, official festivities include parades, concerts, fairs, and fireworks. Traditionally, women would gather various plants, such as rue, fennel, and St John’s wort, which are associated with the holiday. St John’s Eve is celebrated in many countries, particularly in rural areas, including Latvia, Lithuania, Denmark, and the United Kingdom.