Okay, first of all, this is a great app, it functions pretty well given what it's trying to accomplish, but I've noticed many things that could be improved. First off, the UI is not at all pretty. This could be easily fixed, but isn't as important as the next two. When I link to my Dropbox, it won't work.
The Northwest Ordinance. The Northwest Ordinance was a law passed by Congress in 1787 to provide for government of the Northwest Territory, located north of the Ohio River and west of Pennsylvania to the Mississippi River. Soon after its passage, settlers flocked westward and created new towns and farms throughout the territory.
After first providing for the survey of the land west of the Appalachian mountains, the so-called Northwest Territory, Congress enacted the Northwest Ordinance of 1787, the single most important piece of legislation in the Confederation period.