I've always seen the E Pluribus Unum on the coins, but wondered. What does that mean? Probably you always wonder also. Well I decided to to look it up:

So I decided to use a coin that was not familiar to me to add the information onto.
https://images.PCGS.com/CoinFacts/3...547_2200.jpgI picked the last of the commemorative series, the last one. 1936 York County half dollar. So I noticed the link mentioned the EPU was the motto of the United States. So that confused me. So I looked up information on the the motto and found this:
https://www.treasury.gov/about/educ...e-trust.aspxStuff I remembered and forgot. So I considered this source is correct. Didn't realize until I read that the motto was not on the bills, and sometimes it was. But the background helped me fill in a lot of blanks.