Sir Robin Knox-Johnston completed the world’s first non-stop, single-handed global circumnavigation.
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The Paris Agreement was opened for signatures.
Twenty million Americans mobilized to call for greater protections for our planet. This became the world's first Earth Day.
Spain and Portugal signed the Treaty of Saragossa.
The German army used chlorine gas for the first time.
Edward & Sarah Bishop and seven others were examined by Magistrates in Salem, Massachusetts, for witchcraft.
