 Slavery, legally sanctioned in the south and for a long time in the north as well, was supported at every turn by legal structures. So something that I like to use a lot in teaching just to get students thinking about this are these receipts. These are receipts. And the one I'm holding right now is dated Norfolk, September 17th, 1853. It's a printed receipt that's been filled out. It's something that's very similar in a way to something that you might buy at an office supply store. If you went and needed a book of receipts because you had a business. It's got a blank space that you can fill in place and date. And then it says 18-5 and blank. So just like today in writing a check, you might have a set of receipts just to make things easier. They might write 2-0-0 and then you can put in 2009 or 2008 or something like that just to make it just a little easier in filling out a receipt. It's got this, it's obviously a book of receipts that you can fill out all through the 1850s. Then it says, received of blank dollars being in full for the purchase of blank Negro slave named blank. The right and title of said slave blank warrant and defend against the claims of all persons whatsoever. And likewise warrant blank sound and healthy as witness my hand and seal and then the title of this. And it's very elegant 19th century receipt. It's in nice filigree kind of handwriting. It's got lovely illustrations on the side that depict kind of the engines of commerce for the time. There's a steamboat and there's a clippership and there's a railroad. And it says Murphy and company printers Baltimore. Thinking about it, now who, how many people are involved in this receipt? It's being printed by a printer in Baltimore, but it's being printed for probably a lot of people. But this one in particular it's noted it's sold by a bookseller in Richmond. This particular receipt is dated in Norfolk. Now if you were teaching students using this for the classroom one of the first things you might want to do is list all of the locations that are on this receipt and any of the other receipts you are so that students get a sense of the geography of the place like where's Baltimore in relationship to Richmond and where's Norfolk and why might this receipt be dated in Norfolk.