http://www.dailymail.co.uk/news/art...d-drawings-frozen-time-Thanksgiving-1917.htmlWorkers renovating an Oklahoma City high school last week were transported back nearly 100 years after uncovering chalkboards that have remained unchanged since Thanksgiving 1917.
I thought this was so interesting. Like stepping back in time to WWI. There is art and writing that is still is in pretty good shape. Some of it seems to be celebrating Thanksgiving, some of it is math and some a lesson in hygiene.