We missed the chance to implore you to celebrate "Say Something Nice Day" with us on the first of the month (and "National Leave the Office Early Day" yesterday), but there are plenty of other holidays you can observe this month.

1. June 6: National Donut Day

This is not some part of a new dessert trend. In fact, the holiday, annually the first Friday in June, was founded in 1938 to honor the role the sweet treat played in World War I. Members of the Salvation Army, who became known as "Doughnut Dollies," distributed donuts to soldiers to supplement their rations. Years later, during the Great Depression, the Salvation Army created the holiday to remember these earlier services and encourage fundraising.

2. June 8: World Oceans Day

In 2008, the United Nations officially designated June 8 as a day to honor the part of the planet covered in water. Which is to say, most of it. Even before that it was celebrated by the Ocean Project and the World Ocean Network. These days, it's a growing global event with a focus on education and preservation.

3. June 12: National Jerky Day

This is just the third annual celebration of dried meat snacks. Although it should be noted that the enthusiasm such a holiday implies is tempered by the fact that it is sponsored by the Wisconsin Beef Council.

4. June 13: Blame Someone Else Day

This is celebrated on the first occurrence of a Friday the 13th each year. There is always at least one Friday the 13th in a year, and never more than three. Fun fact: fear of Friday the 13th is known as paraskavedekatriaphobia.

5. June 14: World Juggling Day

Celebrated by juggling clubs around the world, presumably by juggling things.

6. June 16: Bloomsday

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Each year, on the anniversary of the day that James Joyce's Ulysses takes place, fans of the author celebrate his life and work in cities around the world as part of a holiday named for the protagonist: Leopold Bloom.

7. June 18: International Sushi Day

Any food worth its salt, or umami, has its own holiday. But if you're looking for an excuse to eat sushi, June 18th seems as good a day as any other.

8. June 19: Recess At Work Day

Between this and National Leave Work Early Day on June 2nd, there seems to be a celebratory push for less actual work hours in the month of June.

9. June 20: Take Your Dog To Work Day

But if you do have to be in the office, better bring the dog along. I hope the puppy-parents of mental _floss will be celebrating this.

10. June 21: Summer Solstice

Summer kicks off for the Northern Hemisphere with the exact solstice at 6:51 AM, EDT. Daylight lasts from 12 hours eight minutes at the equator to the full 24 hours at the Arctic Circle.

11. June 24: National Columnists Day

A day to send along a friendly note of appreciation to your favorite newspaper columnist. Or mental_floss staff writer.

12. June 27: Decide To Be Married Day

I'm not sure nearly-newlyweds need another day of celebration but here's a day to honor not just the fact that they're getting married, but that they decided to do it. Based on the poem by Barbara Gaugghen-Muller:

“It’s in the deciding to be united in love,
to express your joyful oneness to every person you meet,
and in every action you take
and together a perfect marriage you’ll make.”

13: June 29: Log Cabin Day

This is annually celebrated on the last Sunday in June in Michigan with a series of old timey festivities and, presumably, lots of Lincoln Logs.

For an even more exhaustive list of holidays, historical anniversaries and notable birthdays, check out Chase's Calendar of Events.

All images courtesy of ThinkStock unless otherwise noted.