In the United States, Patriot Day occurs on September 11 of each year, designated in memory of the nearly three thousand who died in the September 11, 2001, attacks. Most Americans refer to the day as "Nine-Eleven (9/11)," "September 11th," "Nine-one-one," or some variation thereof.

Columbus Day is a holiday celebrated in many countries in the Americas, commemorating the date of Christopher Columbus's arrival in the New World on October 12, 1492. Similar holidays, celebrated as Día de la Raza (Day of the Race) in many countries in Latin America, Día de las Culturas (Day of the Cultures) in Costa Rica, Discovery Day in the Bahamas, Hispanic Day in Spain, and the newly-renamed (as of 2002) Día de la Resistencia Indígena (Day of Indigenous Resistance) in Venezuela, commemorate the same event.