Licensed to Wed
Charles H. Rossington and Louisa Raquet.
William Haller and Pearl R. McCormick.
Edward F. Perry and Mary E. Diebold.
“Licensed to Wed,” Fort Wayne News (Fort Wayne, Indiana), 22 June 1896, p. 1, col. 7; digital image, Ancestry.com (http://www.ancestry.com : accessed 13 December 2013).
Genealogy Lady 
When did it become law that people had to get marriage licenses? And why?
I am not sure on that but different states and countries have different procedures. In old New England, the banns had to be read for three weeks before the wedding. I have seen in other places where a bond had to be paid in order for a wedding to occur.
I used to work with a Haller. Since I have see the Haller name a lot in your blog it is making me think of him 🙂 He was from Erie, PA.