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1793- Thomas Jefferson resigns from George Washington's Cabinet, forming the Anti-Federalist Party.
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1800- The Era of the Democrats Thomas Jefferson wins versus the incumbent (John Adams) in voting for presidency. The Democrats dominated the nation and the Federalists lost their power.
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1820- The Democrats and Republicans split into two factions.
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1854- The Republican party was formed over issues of slavery. The Democratic party split into two parts (North and South).
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1860- The Era of the Republicans Abraham Lincoln was elected as president and the Civil War was started. The Republican Party had control of the nation.
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1896- William McKinley (Republican) wins the presidential election, bringing votes from a wide-range of electorates. However, Bryan pushed politics to focus more on economics, rather than focusing on sectionalism.
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1912- William Howard Taft was renominated, causing Theodore Roosevelt to join the Progressive Party, splitting apart the support for the Republican Party. Woodrow Wilson (Democrat) wins the election as a result.
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1920-28- The Republican Party wins the next three presidential elections after Taft's 8 year term.
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1929- The Great Depression began, resulting in substantial effects on all parts of America.
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1932- The Return of the Democrats Franklin Roosevelt was elected as President, bringing the Democratic Party back into power.
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1952-1956- The Republicans regained power through Dwight Eisenhower's presidency for two terms.
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1960- John F. Kennedy wins the presidential election, returning power to the Democratic Party.
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1963- John F. Kennedy is assassinated and is succeeded by Lyndon B. Johnson (Democrat)
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1968- The Era of Divided Government Neither the Democrats nor Republicans have been able to fully control the country's politics (presidency and Congress)
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1980- The Iranian hostage crisis led to Jimmy Carter(Democrat) losing to Ronald Reagan (Republican) for the presidential election