en.wikipedia.org/wiki/Federal_Reserve_Note

Federal Reserve Notes, also United States banknotes or U.S. banknotes, are the banknotes currently used in the United States of America. Denominated in United States dollars, Federal Reserve Notes are printed by ..... Ruling on a lawsuit filed in 2002 (American Council of the Blind v. Paulson), on November 28, 2006, U.S.  ...

en.wikipedia.org/wiki/Obsolete_denominations_of_United_States_currency

The United States has produced several coins and banknotes of its dollar which no longer ... The U.S. Dollar has numerous discontinued denominations, particularly high denomination bills, ... Three-dollar bills may be seen at the Smithsonian's National Museum of African American History and Culture in Washington, DC, ...

www.usa.gov/currency

The United States issues paper currency and coins to pay for purchases, taxes, ... American paper currency is issued in several ...

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.uscurrency.gov/history

The first $2 notes are Continentals and are nine days older than America. ... Congress authorizes a new class of currency, known as “United States notes,” or  ...