The adage "a picture is worth a thousand words" holds particularly true in the study of history, where photographs serve as windows into bygone eras. Through visual storytelling, these images offer a glimpse into the social and cultural fabric of the past. This retro gallery brings you some fascinating images - from a vaccination card from 1909 to the original McDonald's mascot - that show the changing face of life in our world over the last 100 years.
Related: Vintage Pics Show a Fascinating Period in American History
