Napoleon had a profound influence on Europe. After France's defeat, European leaders convened at the Congress of Vienna and redrew the map of Europe. Europe enjoyed a time of significant peace due to the Continent being ruled by a balance of power.
Technology and African American migration
Lee Harvey Oswald was responsible for killing/shooting John F. Kennedy.
He went to Texas to raise more Democratic Party presidential campaign funds, wanted to begin his little 'quest' for reelection, and because the Kennedy-Johnson ticket just barely won Texas.
A belief that the growth of the United States was a certainty.
