Heaviest weight ever lifted

The greatest weight ever lifted by a human being is 2,422.18 kg (5,340 lb) for two cars with drivers on a platform backlifted by Gregg Ernst (Canada, b. 30 September 1961), performed and notarized at South Shore Exhibition, Bridgewater, Nova Scotia, Canada, on 28 July 1993. "The greatest weight ever raised by a human being", according to our 1955 book, "is 4,333 lb (1.84 tons) [1,965 kg] by the 25-stone [158.7-kg] French-Canadian Louis Cyr (1863-1912) in Chicago in 1896 in a back-lift (weight raised off Trestles). Cyr had a 60 ½-in [153.6-cm] chest and 22-in [55.8-cm] biceps."