1986 【macOS CERTIFIED】

: On April 26, 1986, a reactor at the Chernobyl Nuclear Power Plant in the Soviet Union exploded. It remains the worst nuclear accident in history, releasing radioactive material across Europe and leading to the long-term abandonment of the city of Pripyat.

: Earlier that year, on January 28, the U.S. Space Shuttle Challenger disintegrated 73 seconds after liftoff, resulting in the death of all seven crew members, including teacher Christa McAuliffe. : On April 26, 1986, a reactor at

: President Ronald Reagan signed COBRA into law on April 7, 1986, which, among other things, authorized U.S. Customs to collect user fees for various inspection services. : The United Nations proclaimed 1986 as the

: The United Nations proclaimed 1986 as the International Year of Peace to promote worldwide adherence to the Declaration of Human Rights. Legislative and Social Milestones among other things