Centinel Timeline of the Ratification of the Constitution by Gordon Lloyd

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October 1787

Oct 5, 1787: Centinel I (Pennsylvania)
Oct 24, 1787: Centinel II (Pennsylvania)

November 1787

Nov 8, 1787: Centinel III (Pennsylvania)
Nov 30, 1787: Centinel IV (Pennsylvania)

December 1787

Dec 25, 1787: Centinel VI (Pennsylvania)
Dec 27, 1787: Centinel VII (Pennsylvania)
Dec 29, 1787: Centinel VIII (Pennsylvania)


January 1788

Jan 8, 1788: Centinel IX (Pennsylvania)
Jan 12, 1788: Centinel X (Pennsylvania)
Jan 16, 1788: Centinel XI (Pennsylvania)
Jan 23, 1788: Centinel XII (Pennsylvania)
Jan 30, 1788: Centinel XIII (Pennsylvania)

February 1788

Feb 5, 1788: Centinel XIV (Pennsylvania)
Feb 22, 1788: Centinel XV (Pennsylvania)
Feb 26, 1788: Centinel XVI (Pennsylvania)

March 1788

Mar 24, 1788: Centinel XVII (Pennsylvania)

April 1788

April 9, 1788: Centinel XVIII (Pennsylvania)



In 1787 and 1788, following the Constitutional Convention, a great debate took place throughout America over the Constitution that had been proposed.

In-Doors Debate

View in-depth studies of the Massachusetts, Virginia, and New York state ratifying conventions.

The Federal Pillars

View drawings of the federal pillars rising published by the Massachusetts Centinel during the ratification debate.

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The Stages of Ratification: An Interactive Timeline

View the six stages of the ratification of the Constitution with links to many other features on this site.

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Interactive Ratification Map

View interactive maps showing the breakdown of Federalist-Antifederalist strength at the state level during the Ratification debate.

View Interactive is a project of the Ashbrook Center at Ashland University

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