Libraries, museums, and organizations throughout the United States and across the world host National Library of Medicine traveling exhibitions. These sites plan and present enriching
By Dan Caughey Photograph postcards, known as “real photo” postcards, were popular mementos to send to loved ones before and during World War I. There
This valentine is postmarked 1913, the year the newly founded Hall Brothers (now Hallmark) first offered Valentines for sale.