1787 (in force 1789) · Constitutions
Constitution of the United States
United States
The first written national constitution still in force. It sets up a federal government with three branches and divides power between the nation and the states.
Why it matters
It was the model for written constitutions, federal systems and judicial review in many countries.
Built on
Went on to shape
Counting texts that borrowed from the texts that borrowed from this one, 8 later texts on this timeline trace back to it.
Countries in the Legal Families Atlas
TheLawToKnow Tools’s timeline lists links of influence only where the borrowing is widely documented. Historians sometimes disagree about how much one text shaped another. It is an educational overview, not legal advice.

