March 21st is the 80th day in the Gregorian calendar; it also marks the anniversary of third—and finally successful—civil rights march led by Dr. Martin Luther King, Jr. and the founding of Twitter. Famous March 21st birthdays include Matthew Broderick, Rosie O'Donnell, and Mark Waid. March 21st also marks International Day of Forests, National Common Courtesy Day, national Fragrance Day, National French Bread Day, National Kick Butts Day, World Down Syndrome Day, and World Poetry Day.
We have 35 holidays listed for March 21.
International Day of Forests
They are one of our greatest natural treasures that we must preserve and protect.
National Common Courtesy Day
With ever-busy lives, we often forget that simple things can make a difference.
Astrology teaches us about how the alignment of the stars forms our personalities.
Big Bang Day
Space nerds and science geeks gather for one of their most iconic commemorations.
Egypt Mother's Day
Celebrate the love, and honor the sacrifices a mother makes for her children, family, and society.
We’ve got harmonious habits and unifying ideas to make your Harmony Day a picture of peace.
International Colour Day
We cannot imagine a world without color so let’s join in this celebration of beauty!
Namibia Independence Day
It’s a good day to join the people of Namibia as they celebrate their country’s independence.
National 3-D Day
If you enjoy 3.D. movies, art, or technology, today’s the day to celebrate 3.D.
National Beverly Day
For all the Beverlys out there, your name reflects a beautiful balance in nature.
National Countdown Day
On National Countdown Day, count the seconds, minutes, or hours until something special happens.
National Day Of Action On Syringe Exchange
This day is all about the life-saving importance of using sterile needles.
National Flower Day
Join us as we learn all about National Flower Day and how to celebrate it.
National French Bread Day
Indulge in this unique bread that is crunchy on the outside and delectably doughy inside.
National Healthy Fats Day
This National Healthy Fats Day, join us in saying yes to healthy fats!
National Renewable Energy Day
Join the movement as we try to save our planet on National Renewable Energy Day.
National Rosie The Riveter Day
Raise your fist and strike a pose as we honor the women of past generations.
National Single Parent Day
Single parents get to take a break from constantly holding down the fort!
Come join us as we usher in Spring with a Persian-themed celebration befitting the occasion.
Slytherin Pride Day
It’s time to slither into the light as we mark Slytherin Pride Day in style.
Grab a bottle and make your favorite dish or cocktail as we celebrate this acclaimed drink.
World Down Syndrome Day
Raise public awareness, promote inclusivity, and support the wellbeing of those living with Down Syndrome.
World Forestry Day
Let us join hands and pledge to save our trees, our forests, and our planet!