Stopped slavery from spreading
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what did u put for part a
Battle of Trafalgar, (October 21, 1805), naval engagement of the Napoleonic Wars , which established British naval supremacy for more than 100 years; it was fought west of Cape Trafalgar , Spain, between Cádiz and the Strait of Gibraltar.
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The Chernobyl accident in 1986 was the result of a flawed reactor design that was operated with inadequately trained personnel. The resulting steam explosion and fires released at least 5% of the radioactive reactor core into the environment, with the deposition of radioactive materials in many parts of Europe.
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