The Warren Commission, which had been convened to examine the circumstances of John F. Kennedy's assassination, releases its final report, which concludes that Lee Harvey Oswald, acting alone, killed Kennedy. Today, up to 81% of Americans are troubled by the official account of the assassination.

The RMS Queen Mary, three-and-a-half years in the making, launches from Clydebank, Scotland. The steamship enters passenger service in May 1936 and sails the North Atlantic Ocean until 1967. Today she is a museum and tourist attraction anchored in Long Beach, U.S.A.

Soviet military officer Stanislav Petrov, whose job involves detection of enemy missiles, is warned by Soviet computers that the United States has launched a nuclear missile at Russia. Petrov deviates from procedure, and, instead of informing superiors, decides the detection is a glitch. When the computer warns of four more inbound missiles he decides, under much greater pressure this time, that the detections are also false. Soviet doctrine at the time dictates an immediate and full retaliatory strike, so Petrov's decision to leave his superiors out of the loop very possibly prevents humanity's obliteration. Petrov's actions remain a secret until 1988, but ultimately he is honored at the United Nations.

In an occurrence known as the Vitim Event, an object crashes to the Earth in Siberia and explodes with a force estimated at 4 to 5 kilotons by Russian scientists. An expedition to the site finds the landscape leveled and the soil contaminated by high levels of radioactivity. It is thought that the object was a comet nucleus with a diameter of 50 to 100 meters.