The 1908 Summer Olympics were an international multi-sport event held in London, England, United Kingdom, from 27 April to 31 October 1908. The 1908 Games were originally scheduled to be held in Rome, but were relocated on financial grounds following the violent eruption of Mount Vesuvius in 1906, which claimed over 100 lives; Rome eventually hosted the Games in 1960.

The 1960 Summer Olympics, officially known as the Games of the XVII Olympiad and commonly known as Rome 1960, were an international multi-sport event held from 25 August to 11 September 1960 in Rome, Italy. Rome had previously been awarded the administration of the 1908 Summer Olympics, but following the eruption of Mount Vesuvius in 1906, the city had no choice but to decline and pass the honour to London. The Soviet Union won the most gold and overall medals at the 1960 Games.