At 2 PM EST, there was a 10 minute moment of silence in memory of John Lennon.
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The capital city of the Roman Empire, Constantinople, was severely damaged by an earthquake.
The European Union formally opened accession negotiations with Ukraine.
After invading Finland, the Soviet Union was kicked out of the League of Nations.
The Dayton Agreement was signed in Paris by leaders of various governments. This ended the conflict in the former Yugoslavia.
A suicide bomber made an attack in Mogadishu, Somalia.