Arthedain Conquered - "In 1974 the power of Angmar arose again, and the Witch-king came down upon Arthedain before winter was ended.  He captured Fornost, and drove most of the remaining Dúnedain over the Lune; among them were the sons of the king.  But King Arvedui held out upon the North Downs until the last, and then fled north with some of his guard; and they escaped by the swiftness of their horses." ~The Return of the King (Appendix A)