That night there was a terrible blizzard that left homeless families to freeze.Vincent Coleman was the telegraph operator who risked his life to send a telegraph to the train coming from Boston instructing them to stop on account of an explosion was brewing.Seconds after the explosion happened the power formed a gigantic tidal-wave.The whole explosion including the tidal-wave happened in a short time period of 10 seconds.About two-thousand people were killed and about nine-thousand people were seriously injured.The Halifax explosion is the second biggest man made explosion in the worlds history. (The first was the Japan Bombing)The Halifax explosion was the biggest Canadian tragedy in terms of life loss and despair.You may know how Halifax sends Boston a Christmas Tree every year in thanks for their support and help during the explosion days, well that tradition didn't start until ABOUT twenty years ago!At least one fifth of the city was in ruins after the explosion.The explosives that the Mont Blanc was carrying were nitroglycerine and trinitrotuol.Eighteen minutes after the explosion the old sugar refinery and all the buildings within a large area collapsed.