Ninety-nine people are killed in Canada's worst railway disaster near St-Hilaire, Quebec.
The St-Hilaire train disaster occurred on June 29, 1864, near the present-day town of Mont-Saint-Hilaire, Quebec. A passenger train fell through an open swing bridge into the Richelieu River after the crew failed to obey a stop signal. The widely accepted death toll is 99 people.
The disaster remains the worst railway accident in Canadian history.