Congressional control over the eleven former Confederate states; there was no such oversight over the border slave states that had remained in the Union. In two later cases, the Supreme Court did establish a basic definition. In United States v. Cruikshank (1875), the court ruled that the "equal rights of citizens" were inherent to the idea of republic. The opinion of the court from In re Duncan (1891) held that the "right of the people to choose their government" is also part of the definition. It is also generally assumed that the clause prevents any state from being a monarchy – or a dictatorship. Due to the 1875 and 1891 court decisions establishing basic definition, in the first version (1892) of the Pledge of Allegiance, which included the word republic, and like Article IV which refers to a Republican form of government, the basic definition of republic is implied and continues to be so in all subsequent versions, including the present edition, by virtue of its consistent inclusion. Republicanism in American history South, slavery, Jim Crow, and women's suffrage Both democratic Ancient Greece and the ancient Roman Republic permitted slavery, but many early Americans questioned slavery's compatibility with Republican values. In 1850, Sen. William H. Seward declared on the Senate floor that slavery was incompatible with the "security, welfare and greatness of nations", and that when slavery "prevails and controls in any republican state, just to that extent it subverts the principle of democracy and converts the state into an aristocracy or a despotism.” The Republican Party was formed by antislavery forces across the North in reaction to the Kansas–Nebraska Act of 1854 that promoted democracy (or "popular sovereignty") by saying new settlers could decide themselves whether or not to have slavery. The party officially designated itself "Republican" because the name resonated with the struggle of 1776. "In view of the necessity of battling for the first principles of republican government," resolved the Michigan state convention, "and against the schemes of aristocracy the most revolting and oppressive with which the earth was ever cursed, or man debased, we will co-operate and be known as Republicans." The antebellum South took the reverse view, interpreting Northern policies against slavery as a threat to their republican values (in particular the system of checks and balances), according to J. Mills Thornton. After the war, the Republicans believed that the Constitutional guarantee of republicanism enabled