Exiled Soviet leader Leon Trotsky was assassinated with an ice axe in Mexico City.
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The Iran-Iraq war ended in a stalemate after nearly eight years of conflict.
The ''LZ 127 Graf Zeppelin” returned to Lakehurst, New Jersey, after being the first airship to circumference the earth in one journey.
More than 30 military students were injured in a mass pillow fight leading to a ban of the event in future years.
The Erickson Brothers submitted the application for the first dial telephone patent.
Mother Teresa contracted malaria and spent one week in hospital in New Delhi, India.
