Tug-of-war events are held all over Okinawa from July to October, and the Naha Great Tug-of-War is one of the biggest. Started around 1450 and then reintroduced in 1971 as part of the 50th-anniversary celebration of Naha City, the event is an opportunity to show Okinawan pride and wish for family harmony, good business, fertility, health, happiness and peace. In 1995, the Naha Great Tug-of-War was certified by the Guinness World Records for having 270,000 attendees, 15,000 participants, and the largest rope made of rice straw, 200 meters long and weighing 43 tons.