For nearly 400 years Newmarket has been the capital and true home of horse-racing. King Charles II - "Old Rowley" - built a palace there. Only in Newmarket are there traffic lights for horses, a preponderance of jockey-sized people and town planning that has first to suit the needs of horses. On and around possiblythe largest stretch of tended grass in the world is based a sporting industry. Ivan Howlett dips into the archives to recall the great days of Newmarket, the headquarters of racing. Producer Nick Patrick