The 1908 Summer Olympics, officially the Games of the IV Olympiad, were an international multi-sport event which was held in 1908 in London, England, United Kingdom. These games were originally scheduled to be held in Rome, but were re-located on financial grounds following a disastrous eruption of Mt Vesuvius in 1906. They were the fourth chronological modern Olympic Games in keeping with the now-accepted four-year cycle as opposed to the proposed Intercalated Games alternate four-year cycle. The IOC president for these Games was Baron Pierre de Coubertin. Lasting a total of 187 days, or 6 months and 4 days, these games were the longest in modern Olympics history.