American Treasures is a new online tool from The National Constitution Center.

Here’s how TIME describes it:

The National Constitution Center has launched a new interactive tool that makes it easy to see the changes between drafts of the U.S. Constitution produced during the Constitutional Convention in Philadelphia in the summer of 1787 and the final product signed on Sept. 17, 1787.

Lines that changed the most are highlighted, so users can click on them and see how they compare to the final version of the Constitution. For instance, a six-year term of the president was proposed in the July 24, 1787, draft.

I’m adding it to The Best Sites For Learning About The Constitution Of The United States.