- Jan 23 Sweden becomes the first nation in the world to ban aerosol sprays, believed to be damaging to earth's ozone layer.
- Sep 16 25,000 die in 7.7 earthquake in Tabar, Iran
- Sep 17 Anwar Sadat, Menachem Begin and Jimmy Carter sign the Camp David Accords, frameworks for peace in the Middle East and between Egypt and Israel
- Oct 5 Over 30 major nations ratify the Environmental Modification Convention which prohibits weather warfare that has widespread, long-lasting or severe effects
- Oct 16 Polish Cardinal Karol Wojtyla elected Pope John Paul II
- Nov 6 Shah of Iran places Iran under military rule; General Gholan Reza Azhari forms government
- Nov 18 In Jonestown, Guyana 918 members of the Peoples Temple are murdered or commit suicide under the leadership of cult leader Jim Jones
1st "micro on a chip" patented by Texas Instruments
On February 14, 1978
Sweden outlaws aerosol sprays due to their harmful effect on the ozone layer, becoming the first nation to enact such a ban.
On January 29, 1978