According to an Olympic historian, the modern form of pictograms was introduced for the first time in 1964 in Tokyo. This is a very interesting article to read on www.olympic.org.
An animated version of these pictograms also exists, it is a first.
Press Release – The Tokyo Organising Committee of the Olympic and Paralympic Games (Tokyo 2020) today unveiled official Olympic and Paralympic kinetic sport pictograms, the first time in the history of the Olympic and Paralympic Games that these have been created. There are a total of 50 pictograms covering 33 Olympic sports and 23 covering 22 Paralympic sports. Their innovative designs aim to reflect the modern era symbolised by the year 2020 and enhance spectator enjoyment of events, both at venues and via TV broadcasting to national and global audiences.
Static sport pictograms were first introduced at the Tokyo 1964 Games, and arose from a need to communicate visually with an increasingly international group of athletes and spectators. The Tokyo 2020 sport pictograms, unveiled in 2019, are designed to subtly communicate the characteristics and athleticism of each sport, as well as artistically highlight the dynamism of the athletes. The new kinetic sport equivalents honour the legacy of past Olympic and Paralympic Games, while emphasising that the Tokyo 2020 Games will be the most innovative Games ever.© tokyo2020.org/