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Advanced Placement

AP US History · Key term · Topic 3.8

Ratification of the Constitution

Updated · For the May 2027 AP exam

Ratification was the approval of the Constitution by special state conventions in 1787–1790; nine of thirteen states had to agree, and New Hampshire became the ninth on June 21, 1788.

When
December 7, 1787–May 29, 1790

Definition

Article VII sent the Constitution to special conventions in the states rather than to the state legislatures, and it needed only nine states, not the unanimous vote the Articles required for any change. Delaware ratified first, on December 7, 1787, and Massachusetts ratified on February 6, 1788, by a vote of 187 to 168, after John Hancock offered a list of recommended amendments. New Hampshire became the ninth state on June 21, 1788; Virginia ratified, 89 to 79, after the Federalists promised to seek amendments, and New York ratified, 30 to 27. North Carolina and Rhode Island held out until the new government was already running, joining in 1789 and 1790.

Why it matters on the AP exam

Ratification is the setting for the Federalist and Anti-Federalist debate over national power, liberty and a bill of rights, a standard topic in Period 3 questions. The Federalists won close votes in Massachusetts, Virginia and New York largely by promising to add amendments, and that promise led to the Bill of Rights in 1791. Questions ask students to explain the arguments each side made and often use a Federalist Paper or an Anti-Federalist writing as the source.

In the sources

“I give my assent to the Constitution, in full confidence that the amendments proposed will soon become a part of the system.”

John Hancock, Massachusetts ratifying convention, as reported, February 6, 1788

Connections

Study it in context

Topic 3.8: The Constitutional Convention and Debates over Ratification Watch this part

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