What caused the 1908 Olympics to be held in London?

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 from 27 April to 31 October 1908. These games were originally scheduled to be held in Rome, but were re-located on financial grounds following a disastrous eruption of Mount Vesuvius in 1906.

The selection process for the 1908 Summer Olympics consisted of four bids, and saw Rome selected ahead of London, Berlin and Milan. The selection was made at the 6th IOC Session in London in 1904.

Italian authorities were preparing to hold the games when Mount Vesuvius erupted on 7 April 1906, devastating the city of Naples. Funds were diverted to the reconstruction of Naples, so a new venue was required. London was selected for the first time to hold the Games which were held at White City alongside the Franco-British Exhibition, at the time the more noteworthy event.