Who doesn’t know the dates for such holidays as Valentine’s Day or Christmas?

With this calendar, we give you some holidays that are not only fun, but ones you may never knew existed. Mark them down and plan to celebrate! Our favorite is on March 15 (read above to find out what it is).

January

17: Kid Inventors’ Day. Celebrating earmuffs, skis, Popsicles and everything else invented by kids.

23: National Handwriting Day. Observed on the birthday of that guy with the famous signature, John Hancock.

30: Bubble Wrap Appreciation Day

February

National Black History Month

2: Groundhog Day

3: Bubble Gum Day

8: Boy Scouts of America founded in 1910.

12: Abraham Lincoln was born in 1809.

14: Valentine’s Day

18: Pluto discovered in 1930. It was demoted to dwarf planet in 2006.

20: Bun Day in Iceland. Children go to homes in the morning with colorful sticks and are given whipped cream buns.

22: George Washington was born in 1732.

29: Leap Day

March

National Umbrella Month

National Women’s History Month

2: Read Across America Day in honor of the 108th anniversary of Theodor Seuss Geisel’s birth. He’s better known as Dr. Seuss.

8: National Proofreeding Day. (Can you spot our mistake?)

15: Absolutely Incredible Kid Day. Which, of course, is in honor of all our readers!

17: St. Patrick’s Day

20: First day of spring

31: The Eiffel Tower opened in Paris on this date in 1889.

April

National Poetry Month

2: April Fool’s Day. (April Fool!)

6: “Barney and Friends” first aired on TV 20 years ago. (You watched “Barney”; even if you don’t remember!)

12: National Licorice Day

15: First McDonald’s opened on this date in 1955.

23: The Boston Latin School opened on this date in 1635, making it America’s oldest public school.

27: Arbor Day. Hug a tree; or better yet, plant one!

May

2: Great American Grump Out. Can you go all day without being grumpy?

3: National Day of Prayer. Whatever you believe, pray for a better world.

4: Star Wars Day. “May the fourth be with you!”

13: Mother’s Day

18: Bike to Work (or School) Day

28: Memorial Day

June

9: Donald Duck’s birthday. He first appeared in a movie on this date in 1934.

16: World Juggling Day

17: Father’s Day

20: First day of summer

27: “Happy Birthday to You” birthday: A schoolteacher wrote the music to this famous song on this date in 1859.

July

National Ice Cream Month

National Hot Dog Month

1: The nation’s first zoo, in Philadelphia, opened on this date in 1874. Admission cost 25 cents for adults; 10 cents for kids.

4: Independence Day

7: Father-Daughter Take a Walk Together Day

16: Global Hug Your Kids Day

20: First man landed on the moon on this day in 1969.

25: Chincoteague Pony Swim

August

5: National Underwear Day. (We recommend that every day be National Underwear Day.)

9-13: Perseid meteor showers, catch a falling star and put it in your pocket!

13: International Left-Handers Day

19: Black Cow Float created on this date in 1893. Features root beer and vanilla ice cream.

26: National Dog Day

September

Happy Cat Month

2-8: National Waffle Week

3: Labor Day

7: Google founded on this date in 1998. (Don’t believe us? Google it!)

9: National Grandparents Day

15: International Eat an Apple Day

19: International Talk Like a Pirate Day

22: First day of fall

October

1: The first CD player went on sale on this date in 1982. It sold for $625.

10: Bring Your Teddy Bear to Work Day

15-19: National School Lunch Week

16: Dictionary Day

23: Apple unveiled the first iPod on this date in 2001. It sold for $399.

30: National Candy Corn Day

31: Halloween

November

4: The tomb of Tutankhamen, the boy king of Egypt (also known as King Tut), was discovered on this day in 1922.

6: Election Day

7-13: Dear Santa Letter Week. (Because it’s never too early to write that special note.)

15: I Love to Write Day

18: Mickey Mouse’s birthday. He first appeared in ”Steamboat Willie” on this date in 1928.

18-24: National Game and Puzzle Week.

22: Thanksgiving

December

8: Hanukkah starts

21: First day of winter

21: First crossword puzzle was published on this date in 1913.

25: Christmas

26-Jan. 1: Kwanzaa

31: New Year’s Eve. Celebrate: We made it through another year!