August 4th is the 216th day in the Gregorian calendar. In 1944, Anne Frank was arrested by Nazi police. In 2007, NASA's Phoenix spacecraft is launched on a Mars exploration. President Barack Obama and Cole and Dylan Sprouse were born on this day. National Chocolate Chip Cookie Day and National Coast Guard Day are celebrated on August 4th.
We have 15 holidays listed for August 4.
National Chocolate Chip Cookie Day
We love our cookies, and this triple-C confection holds a special place in our hearts.
Assistance Dog Day
Celebrate man’s best friend because it’s Assistance Dog Day here at National Today!
Cook Islands Constitution Day
Learn the fascinating history of the Cook Islands and its citizens on Constitution Day.
Learn how Ghana gained its independence and what makes The Black Stars so special.
International Clouded Leopard Day
About 10,000 endangered clouded leopards need you to celebrate International Clouded Leopard Day.
Mary Prince Day
Find out Mary Prince’s experiences as a female slave and how her book changed the world.
Matice Slovenska Day
Celebrate the birth of the scientific and cultural institution with Slovakians across the globe.
National Water Balloon Day
Fill 'em up and let 'em fly; today is the day water balloons color the sky.
Single Working Women's Day
As its name implies, this day celebrates all those women who are gainfully employed.
U.S. Coast Guard Birthday
On the U.S. Coast Guard Birthday, we commemorate the military organization for its valor and discipline.