Rulers:
• Woodrow Wilson, 28th President of the United States (1913-1921)
• Warren G. Harding, 29th President of the United States (1921-1923)
Events:
• The Phillips Collection established in Washington.
Births:
• Bogarde, Dirk (1921-1999)
• Brown, Robert (1921-2003)
• Hill, George Roy (1921-2002)
• Jourdan, Louis (1921-2015)
• Keith, Brian (1921-1997)
• Kulp, Nancy (1921-1991)
• Manfredi, Nino (1921-2004)
• Masina, Giulietta (1921-1994)
• Patroni Griffi, Giuseppe (1921-2005)
• Saks, Gene (1921-2015)
• Ustinov, Peter (1921-2004)
• Vigoda, Abe (1921-2016)
• Wilson, Elizabeth (1921-2015)
Deaths:
• Brunet, Eugène Cyrille (1828-1921)
• Metternich, Pauline von (1836-1921)
Literature:
• García Lorca, Federico (1898-1936): Canciones (1921-1924)
• García Lorca, Federico (1898-1936): Libro de Poemas (1921)
• García Lorca, Federico (1898-1936): Poema del cante jondo (1921)
• Shaw, George Bernard (1856-1950): Back to Methuselah (1921)
• Unamuno, Miguel de (1864-1936): La Tía Tula (1921)
Art:
• Derain, André (1880-1954): La route vers Castel Gandolfo (1921)
• Léger, Fernand (1881-1955): La femme au chat (1921)