The 1964 Olympic Games in Tokyo, Japan.

The 1964 Olympic Games were marred by the absence of Indonesia, North Korea, and South Africa. Both Indonesia and North Korea voluntarily withdrew their teams from the competition when several of their contestants were found to be disqualified (those athletes who had participated in the New Emerging Forces Games in Jakarta in 1963 were not allowed to participate in the Olympic Games).


South Africa was banned from participating in the Olympic Games by the IOC because of South Africa's racist policy of apartheid.


The 1964 Olympic Games debuted the first use of computers to keep results.


About 5,000 athletes participated, representing 93 countries.