text: Henry Wilson ( February 16 , 1812 - November 22 , 1875 ) was the 18th Vice President of the United States ( 1873 â `` 1875 ) and a Senator from Massachusetts ( 1855 â `` 1873 ) .
simplified: Henry Wilson ( February 16 , 1812 â `` November 22 , 1875 ) was a Senator from Massachusetts and the eighteenth Vice President of the United States .