Picture from Wiki
On the 6th of December 1917 the SS Mont Blanc, loaded with TNT, Pitric Acid, Benzole and Gun Cotton, collided with the SS Emo at the narrowest part of Halifax harbour. The resulting explosion was the largest man made explosion prior to Hiroshima
|After. (Picture from Wiki article)|
Nature with its usual sense of humour dumped 40 cm of snow on the city the next day as relief efforts were getting into high gear.