Radzinsky, Edvard, Alexander II : The Last Great Tsar, -LRB- Freepress 2005 -RRB- p. 413 1886 : Bomb at Haymarket Square, Chicago during a labor rally caused the Haymarket Riot which killed twelve people.
La bombe de 1886 à Haymarket Square, à Chicago, lors d'un rassemblement de travailleurs, tue 12 personnes.