In 1947 during the 41st Session of the International Olympic Committee in Stockholm, Doctor Gruss, IOC member in Czechoslovakia, presented a report on a World Olympic Day celebration which would primarily be a day of promoting the Olympic idea. The National Olympic Committees (NOCs) were given the responsibility to choose a date between 17th and 24th June to celebrate the day. After much discussion 23rd June was chosen to commemorate the foundation of the International Olympic Committee in Paris because on 23 June 1894 where Pierre de Coubertin obtained the revival of the Olympic Games. Thus, the first Olympic Day was celebrated on 23 June 1948. Over the last 20 years Olympic Day has been associated with Runs all over the world to promote the practice of mass sport in the true spirit of sportsmanship. From 45 participating NOCs in the first edition in 1987, the numbers have grown to more than an hundred participating NOCs.