The Briscoe Center for American History's Printed Ephemera collection, dating from 1773 to the present, provides evidence of people, places, events, and ideas that helped shape American history and culture. Examples of printed ephemera include broadsides, invitations, advertisements, business cards, campaign posters, admission tickets, printed programs, and greeting cards. For historians and other researchers, ephemera has value because it has the characteristic of being "of the moment," thus serving as a mirror of our past.