St. Thomas’s Day is observed worldwide on December 21, celebrating the feast of Saint Thomas the Apostle. Although the Roman Catholic Church moved the celebration to July 3 in 1969, many Western Christian churches, including the Church of England and the Lutheran Church, continue to honor the original date. This day traditionally marks the beginning of the Christmas season and has roots dating back to the 9th century, commemorating Thomas’s martyrdom. Customs associated with St. Thomas’s Day include "Thomasing," where children and the less fortunate would go door to door seeking money or goods for Christmas, a practice that began in 18th century England. In various European countries, traditions also highlight the winter solstice, with activities like students racing to school and customs to ward off evil spirits in Austria. In Guatemala, the town of Chichicastenango celebrates a week-long festival culminating on December 21, blending indigenous and Catholic traditions with vibrant costumes and parades.