United States superstar Katie Ledecky and French sensation Leon Marchand made Olympics history in the swimming competition at the Paris Games on Wednesday. While Ledecky became the first female swimmer to win gold at four Olympics with a win in the 1,500-metre freestyle, Marchand became the first ever swimmer to medal in breaststroke and butterfly at one Olympic Games. China’s 19-year-old Pan Zhanle, meanwhile, set a new world record of 46.40 seconds to win 100-metre freestyle gold. Ledecky not thinking too much about history Ledecky delivered a historical performance in her 1,500m freestyle, …