2nd » British Satellite Broadcasting and Sky Television plc merge to form BSkyB as a result of massive losses.
5th » Rabbi Meir Kahane, founder of the far-right Kach movement, is Assassination of Meir Kahane known as shot dead after a speech at a New York City hotel.
7th » Mary Robinson becomes the first woman to be elected President of Ireland e.g President of the Republic of Ireland.
12th » Crown Prince Akihito is formally installed as Emperor Akihito of Japan, becoming the 125th Japanese monarch.
12th » Tim Berners-Lee publishes a formal proposal for the World Wide Web.
13th » In Aramoana, New Zealand, David Gray shoots dead 13 people in Aramoana massacre called a massacre before being tracked down and killed by police the next day.
14th » After German reunification, the Germany named Federal Republic of Germany and Poland sign a treaty confirming the Oder–Neisse line as the border between Germany and Poland.
15th » Space Shuttle program: Space Shuttle Atlantis e.g Space Shuttle 'Atlantis' launches with flight STS-38.
17th » Fugendake, part of the Mount Unzen volcanic complex, Nagasaki Prefecture, Japan, becomes active again and erupts.
22nd » British Prime Minister of the United Kingdom called Prime Minister Margaret Thatcher withdraws from the Conservative Party (UK) leadership election, 1990 e.g Conservative Party leadership election, confirming the end of her premiership.
26th » The Delta II rocket makes its maiden flight.
29th » Gulf War: The United Nations Security Council passes two resolutions to restore international peace and security if Iraq does not withdraw its forces from Kuwait and free all foreign hostages by January 15, 1991.