Complex sentence: From 1957 to 1966 RCF Paris was the organizer of the tournament and its inauguration took place between 11 July and 14 July 1957 to celebrate the club's 25th anniversary.
Split into simpler sentences: From 1957 to 1966 RCF Paris was the organizer of the tournament. The inaugural tournament took place between 11 July and 14 July 1957 to celebrate RCF Paris' 25th anniversary.