October 10, 2011
- U.S. federal holidayColumbus Day
- State holidayColumbus Day / American Indian Heritage Day / Fraternal Day
- State holidayNative Americans' Day
EVENTS & OBSERVANCES · UNITED STATES
1960–2030Explore the archive
October 2011 observances.
Holidays, cultural dates and regional observances. Explore each date and its sources.
October 18, 2011
- State holidayAlaska Day
October 28, 2011
- State holidayNevada Day
October 31, 2011
- U.S. observanceHalloween
Calendar sources: OPM, US holiday calendar. Regional and observed dates are labelled on each entry.