An addition or change to the constitution is known as an amendment. They have to go through many stages of deliberation before becoming part of the constitution.
Hope this helps and have a nice day! :)
Trade with Mesopotamia Egypt and Phoenicia
<span>December 12, 1787 because i know and try if its right
</span>
1. James Watt
2. Jethro Tull
3. Eli Whitney