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National days, ongoing national weeks and months, and global observances for January 1, 2026. Plus historical events and birthdays.
These observances run for a full week; this calendar day falls inside the week.
These observances last the full month; this date is part of that month-long celebration.
Showing the first 12 on this date; there are more month-long observances. See the full months list for January.
International and other global observances on this date (may include days, weeks, or months).
Events that occurred on January 1 throughout history
Lackington, Hughes, Harding, Mavor, & Jones publishes the novel Frankenstein: or The Modern Prometheus anonymously. Written by Mary Shelley, the author's identity isn't revealed until three years later when the second edition is published in Paris.
Entrepreneur C.W. Post of Battle Creek, Michigan introduces Postum Food Coffee. The Coffee substitute is made from wheat, bran, and molasses. Three years later he introduces Post Grape-Nuts cereal.
The Hewlett Packard Company is founded in a garage in Palo Alto, CA by Bill Hewlett and Dave Packard.
David Dinkins takes the oath of office becoming New York City's first Black mayor.
The Joint Commission on Accreditation of Healthcare Organizations (JCAHO) mandated hospitals to include no-smoking policies indoors or risk losing accreditation. Loss of accreditations places hospitals at risk of losing Medicare and Medicaid reimbursement.
People born on January 1
