Social Studies Apps- Lincoln Telegrams

I thought this was an interesting app.  It includes over 300 digitized telegram memos written by President Abraham Lincoln himself.  The app allows you to see a copy of the telegram, as well as types the words out incase it is hard to read.  I thought this app could be used in the classroom during Social Studies lessons, especially any lessons about Lincoln.  It shows what his writing looked like, as well as some of the topics they discussed back then.  You could compare some of their problems to those we have today.  A teacher could also discuss how we don't even use telegrams anymore and show the transition into technology we have today like cell phones and email.  I thought this app offered many features to learn about Lincoln, some that could even be incorporated in today's classroom.