Wired.com spotlights two tragedies that happened on Nov 9, 1963: industrial accidents that killed more than 600 people in one day.
The first accident occurred at the Miike coal mine between Omuta and Arao. Ten mining carts loaded with coal were being hauled to the surface at around 3:12 in the afternoon. One of the chains linking the carts together severed and sent eight of them careening out of control to the bottom of mine. The carts traveled nearly 400 yards and hit speeds of 73 mph before crashing….As if that weren’t enough, several hundred miles away in Yokohama, a deadly three-train railroad crash had occurred.
This day in tech [Wired.com]