en.wikipedia.org/wiki/United_States_Note

A United States Note, also known as a Legal Tender Note, is a type of paper money that was ... During 1861, the first year of the American Civil War, the expenses incurred by .... Like all U.S. currency, United States Notes were produced in a large sized .... Miller, and Davis, to reverse Hepburn, 5–4, in the 1871 cases Knox v.

en.wikipedia.org/wiki/Banknotes_of_the_United_States_dollar

Multiple types of banknotes of the United States dollar have been issued, including Federal ... Before the American Revolution, every one of the Thirteen Colonies had issued its own paper money, ... They were not redeemable but were receivable for all taxes and debts, which is what persuaded people to circulate them.

www.uscurrency.gov/history

Paper currency in the United States is born, issued by the Massachusetts ... All U.S. currency issued since 1861 remains valid and redeemable at full face value.

www.uscurrency.gov/denominations/100

Hold the note to light to see an embedded thread running vertically to the left of the portrait. The thread is imprinted with the letters USA and the numeral 100 in ...

www.moneyfactory.gov/uscurrency.html

The BEP prints billions of dollars - referred to as Federal Reserve notes - each ... to a state-of-the-art manufacturing operation producing U.S. paper currency. ... use similar portraits and historical images to maintain an American look and feel.