January 25 - Idi Amin stages a coup and deposes Milton Obote.
January 25 - Intelsat IV is launched to provide commercial communications across the Atlantic.
February 11 - the US, UK, and USSR sign the Seabed Treaty, banning underwater nuclear tests.
February 13 - South Vietnam invades Laos.
February 15 - The UK and Ireland convert to a decimal currency.
March 26 - East Pakistan (now Bangladesh) declares independence from Pakistan.
March 29 - Lt. William Calley is found guilty of 22 murders in My Lai.
April 17 - The People's Republic of Bangladesh forms.
April 24 - 500,000 people march on Washington, DC, and 125,000 in San Francisco in opposition to the Vietnam War.
May 15 - The Israeli ambassador to Turkey is kidnapped. He is later found killed.
June 10 - The US ends a trade embargo with China.
June 17 - The US and Japan sign the Okinawa Reversion Agreement. The US agrees to return control of Okinawa to Japan.
August 15 - President Nixon unhooks American currency from the gold standard. This is the origin of inflation.
August 18 - Australia and New Zealand decide to withdraw their troops from Vietnam.
September 3 - Qatar become independent from Great Britain.
October 25 – The People's Republic of China is admitted to the UN General Assembly, and Taiwan is expelled.
December 2 - The United Arab Emirates is formed
December 3 - Pakistan attacks 9 Indian airbases. In response, India invades Pakistan and Nixon directs the 7th Fleet to sail to the Indian ocean.
December 16 - Pakistan surrenders, and the Bangladesh Liberation War is over.
December 18 - In response to coming off the gold standard, the US dollar is devalued for only the second time in history.