- Jefferson's election<span> confirmed the emergence of a </span>two<span>-party system in American politics. ... </span>Thomas Jefferson<span> called </span>his election<span> "the </span>Revolution of 1800<span>" because it ... Adams and the Federalists had </span>led<span> the nation into an undeclared naval ... In 1802, </span>he<span> acquired the vast </span>territory<span> of</span>Louisiana<span> from France, ...</span>
United States of America of course!
I believe they haven't.
We can see this through the language that is chosen by the author to desrcibe Okonkwo's encounter with White men. The author use language such as 'the first shadow' of white men. This phrase indicates that prior to that occurence, they never made contact to any white men before.