Inspired by The Vowel Eater. Thanks, @JonMark Perry!
A vowel,-space,-and-punctuation-eating monster and a paper-ripping monster have broken into the Federal Archives of the United States! (oh no!)
You find this fragment of an important historical document:
...dndschcnvyncsbcknwldgdrthxctnthrfdlyprvdndbrcrddwthnnyrftrprprmgstrtscrtsndrgstrsshllbppntdfrthtprpsndprsnlprprtymybtrnsfrrdbydlvrysvnghwvrtthFrnchndCndnnhbtntsndthrsttlrsfthKsksksStVncntsndthnghbrngvllgswhhvhrtfrprfssdthmslvsctznsfVrgnthrlwsndcstmsnwnfrcmngthmrltvtthdscntndcnvyncfprprty
BtrdndbyththrtyfrsdThtthrshllbppntdfrmtmttmbyCngrssgvrnrwhscmmssnshllcntnnfrcfrthtrmfthryrsnlsssnrrvkdbyCngrsshshllrsdnthdstrctndhvfrhldsttthrnn1000crsflndwhlnthxrcsfhsffc..
Thrshllbppntdfrmtmttm
What is this important historical document? Quick, you have to find out so the Archives can sort their stuff again!