 The Tailtin Fair was held there in medieval times as a revival of the ancient "Aonach Tailteann", and was revived as the Tailteann Games for a period in the twentieth century.While mound structures near Teltown have been asserted in legends in the Book of Invasions to be ancient man-made earthworks 2500 years old, modern archaeological reports of the area suggest they date to at least the Iron Age.Part of one of the mounds in the area called the Knockauns () was partially destroyed by bulldozers for urbanization in 1997.