Which time period saw all Republican presidents except for Grover Cleveland?

The correct answer is the time period between 1868 and 1912 because during this time, the Republican Party dominated the presidency in the United States. After the Civil War, the Republican Party emerged as the principal party associated with the Union and, subsequently, the post-war reconstruction. This dominance was particularly evident with presidents such as Ulysses S. Grant, Rutherford B. Hayes, William McKinley, and Theodore Roosevelt, all of whom were members of the Republican Party.

Grover Cleveland, who served two non-consecutive terms as president, is notable for being a Democratic president during an era characterized primarily by Republican leadership. Therefore, the selection of the period from 1868 to 1912 accurately captures the era when all presidents, except for Cleveland, were Republicans, emphasizing the political climate and party dynamics of the time.

The other time periods listed do not reflect this same level of Republican dominance. The years 1860-1864 includes the presidency of Abraham Lincoln, but also overlaps with significant turmoil and the Civil War. The period from 1789 to 1824 includes early presidencies where the political landscape was far less defined and characterized by the Federalist and Democratic-Republican parties, while the years 1920