Exiled Soviet leader Leon Trotsky was assassinated with an ice axe in Mexico City.
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Mother Teresa contracted malaria and spent one week in hospital in New Delhi, India.
Estonia claimed its independence from USSR.
NASA announced they would send a ship to Jupiter's moon, Europa, to look for extraterrestrial life.
The ''LZ 127 Graf Zeppelin” returned to Lakehurst, New Jersey, after being the first airship to circumference the earth in one journey.
A suicide bomber killed 57 people while injuring 66 in Gaziantep, Turkey.
