Version 6.0 of the Chronology of Constitutional Events (CCPCCE) is out now! This update extends coverage through 2025 and adds 81 new observations across 45 countries, including 4 new constitutions (Tunisia 2022, Gabon 2024, Togo 2024, Guinea 2025), Syria’s 2025 constitutional suspension and interim charter, and 74 amendments spanning every world region.

CCPCCE v6 tracks every constitutional adoption, amendment, suspension, and reinstatement for all independent states since 1789 — over 20,600 country-years of data available for your research. Did we miss anything? Let us know! You can download the data, codebook, and documentation on our data page.