This plaque could hang just about anywhere in the world because nothing of note, at least historically, happened on that particular day. However, 200 years later on September 15, 1972, a 4.5 magnitude earthquake shook Northern Illinois. I remember that day because I was sitting in the living room of a house in Sycamore, Illinois when my dog suddenly jumped up from where he was laying by my feet and scampered under a table in the corner of the room. A moment later everything around me shook just a little for a few seconds.
I guess I could have hung a plaque on that house: On This Site Sept. 5, 1972, My Dog Warned Me About an Impending Earthquake.