2027

1 International Observance to Celebrate on January 21, 2027

International observance days, weeks, and months for January 21, 2027. Plus historical events and birthdays.

2027
International Sweatpants Day

International Sweatpants Day

January 21, 2027 celebrates International Sweatpants Day. International Sweatpants Day on January 21st celebrates one of the comfiest pieces of clothing ever invented. It’s a day to don your sweatpants and wear them all day long! (Unless of course your school or place of work has a dress code).

Read the full story →

Historical Events on January 21

Events that occurred on January 21 throughout history

1921

Publishing house The Bodley Head published British author

Publishing house The Bodley Head published British author Agatha Christie’s debut novel in the United Kingdom, The Mysterious Affair at Styles. The novel was released in the United States a few months earlier.

Back to top

The National Day Nightly

Your tomorrow, delivered tonight.

Join our community of 700,000+ celebration enthusiasts