21 June

1952 Reg Parnell won the non-championship West Essex CC F2 1953 Alberto Ascari won the Belgian Grand Prix 1969 Jackie Stewart won the Dutch Grand Prix 1970 Jochen Rindt won the Dutch Grand Prix 1970 Piers Courage killed 1981 Gilles Villeneuve won the Spanish Grand Prix 1987 Ayrton Senna won the US Grand Prix