Saved on this device

Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Philosophy

The Historical Evolution of Natural Rights

Quick fact

The phrase 'unalienable rights' in the U.S. Declaration of Independence was a radical shift: it claimed that governments do not grant rights, but instead are formed to protect rights that belong to people naturally, before any government exists.

Why this is interesting

You've probably heard that you have certain 'inalienable rights'—but where did that idea come from? It wasn't invented in a courtroom; it evolved over thousands of years.