Mark The Day

Today's Marks - September 21st

Every day has a story—and more often than not, more than one.

Mark The Day is a growing collection of daily celebrations, weekly themes, monthly observances, and notable birthdays from around the world. From widely recognized holidays to lesser-known and delightfully unusual occasions, the site is built to help you explore what makes each date worth remembering.

Each article is written to provide clear background, historical context, and practical ways to engage with the day. Whether you're here to discover something new, find a reason to celebrate, or see which famous names share your birthday, you’ll find content that is organized, regularly updated, and easy to navigate.

Start with today’s highlights, explore the calendar, or dive into featured articles—there’s always something worth marking.

Featured Marks

Mark The Days - September 21st

  • Welcome to the Day! Today we are celebrating Chai Day, Miniature Golf Day, and Singles Day, an unexpectedly sensible combination. Start with a warm, spicy chai, head out for eighteen holes of miniature golf where windmills and suspiciously placed rocks destroy any illusion of sporting ability, then celebrate being single by remembering that nobody else gets a vote on what happens next. Drink what you like, keep your own score, and go home whenever you please. Frankly, September 21 may have accidentally stumbled upon the perfect day.

  • National Chai Day
  • National Singles Day
  • Miniature Golf Day

Mark The Weeks - September

  • International Housekeepers & Environmental Services Week

    International Housekeepers & Environmental Services Week is the annual reminder that civilization itself...

  • Tolkien Week

    Tolkien famously spent over a decade writing The Lord of the Rings, which is probably what happens...

  • Build A Better Image Week

    Cleaning up your image is like trying to tidy up a room that’s been neglected for far too long—you start...

Mark The Months - September

Trending Marks

Good Hair Day

Good Hair Day

International Rock Day

International Rock Day

St. John’s Day

St. John’s Day

National Mahjong Day

National Mahjong Day

National Catchers Day

National Catchers Day

International Data Center Day

International Data Center Day

Celebrity Birthdays - September 21st

Alfonso Ribeiro
Cheryl Hines
Faith Hill
Stephen King
Dave Coulier

Today in History - September 21st

Mark The Day - Logo

1792:  France Abolished the Monarchy 
1915:  Stonehenge is Auctioned Off
1999:  Thousands Killed in Taiwan Earthquake 
2008:  The Last Baseball Game is Played at Yankee Stadium