The word "unfriend" appeared in print all the way back in 1659.
Think you can pick out the 10 songs below just by hearing their intros? It's the next drop-the-needle quiz in our ongoing audio series.
As late as the 1800s, some American women received thimbles as symbols of their engagements.
The poinsettia is named after former congressman and ambassador Joel Poinsett, who introduced the plant to the United States in the 1800s.