Also in 1956

• 30 of July - A joint resolution of the U.S. Congress is signed by President Dwight D. Eisenhower, authorizing In God we trust as the U.S. national motto.
• 8 of January - Operation Auca: Five U.S. missionaries are killed by the Huaorani of Ecuador shortly after making contact with them.
• 1 of November - The Springhill mining disaster in Springhill, Nova Scotia kills 39 miners; 88 are rescued.