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History
1981 in science
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The year 1981 in science and technology involved many significant events, listed below.
IBM PC 5150
IBM PC 5150
1986 in science
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The year 1986 in science and technology involved many significant events, some not listed below.
Crew of NASA Space Shuttle Challenger mission STS-51-L
Crew of NASA Space Shuttle Challenger mission STS-51-L