(from the article `iceboating`) ...a boat with 60 square feet (5.6 square m) of sail, designed in the hobby shop of The Detroit News in 1937, suddenly caught on in the late 1950s ... Found on http://www.britannica.com/eb/a-z/d/60
(from the article `Dehra Dn`) ...academies. The city also has colleges and museums. A few miles northeast is a sulphur spring used for bathing. In the surrounding area peaks rise ... Found on http://www.britannica.com/eb/a-z/d/82