The Halifax Explosion: When Two Ships Accidentally Created a Weapon of Mass Destruction

On the morning of December 6, 1917, two ships collided in Halifax harbor, Nova Scotia. One of them, the SS Mont-Blanc, was essentially a floating bomb - packed with 2,900 tons of explosives including TNT, picric acid, and benzol. The collision sparked a fire that burned for 20 minutes while horrified crowds gathered at windows to watch. Then the ship exploded with a force so massive it remains the largest man-made explosion in history before nuclear weapons.

The blast was apocalyptic. It flattened everything within a half-mile radius, killed approximately 2,000 people instantly, injured 9,000 more, and left 25,000 homeless. The explosion was so powerful that a half-ton section of the ship's anchor landed over 2 miles away where it  ...