Claim: Argentina Juan Manuel Fangio was announced the grand winner during the 1954 Italian Grand Prix that was held on 5 September 1954 at Monza,
Evidence: The 1954 Italian Grand Prix was a Formula One motor race held on 5 September 1954 at Monza. Pos Argentina Juan Manuel Fangio The 80-lap race was won by Mercedes driver Juan Manuel Fangio after he started from pole position.