Why Are There Two National Doughnut Days?

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For those of us who prefer our blood sugar to remain relatively stable, doughnuts are an occasional treat—nutritionally bankrupt but delicious fried dough laced with flavors from chocolate to bacon. You might even choose to indulge only in honor of National Doughnut Day, which is observed each year on the first Friday of June.

Curiously, a second National Doughnut Day pops up just five months later, on November 5. We don’t have two Thanksgivings, two Halloweens, or even two National Hot Dog Days. So why do doughnuts get to claim two dates?

It helps to know how the June date originated: During World War I, volunteers who wanted to support troops were charged with preparing food to deliver to soldiers on the front lines in France. The Salvation Army dispatched over 250 women there, who found that battle-tested helmets were perfect for frying up to seven doughnuts at a time.

In 1938, the Salvation Army decided to honor these proclaimed “doughnut lassies” by recognizing an annual pastry holiday that could also raise awareness (and money) for their charitable efforts. National Doughnut Day was born.

Its calendar doppelgänger is harder to trace. According to food holiday historian John Bryan Hopkins, who cataloged several fringe holidays for his site Foodimentary beginning in 2006, mentions of the November Doughnut Day could be found as early as the 1930s in copies of Ladies' Home Journal. Hopkins speculated that the November 5 date is close enough to Veterans Day on November 11 that a retail outlet likely introduced the date to acknowledge their service.

But which date do the major doughnut industry forces recognize? Entenmann’s tells us they don’t participate in November 5 celebrations. In 2017, a Dunkin’ Donuts spokesperson told Mental Floss:

Dunkin' Donuts celebrates National Donut Day which is traditionally celebrated on the first Friday of June, which was originally established in 1938 by the Chicago Salvation Army to honor women who served donuts to soldiers during World War I.”

Krispy Kreme likes to remain the Switzerland of doughnut delegating, having been known to give doughnuts away on both dates. But considering June’s date has a proven—and noble—lineage, you might want to side with Dunkin’ and consider it the more official of the two holidays. And if you manage to miss both days, don’t be concerned: June 8 is National Jelly-Filled Donut Day, and National Cream-Filled Donut Day lands on September 14.

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What is a Polar Vortex?

Edward Stojakovic, Flickr // CC BY 2.0
Edward Stojakovic, Flickr // CC BY 2.0

If you’ve turned on the news or stepped outside lately, you're familiar with the record-breaking cold that is blanketing a lot of North America. According to The Washington Post, a mass of bone-chilling air over Canada—a polar vortex—split into three parts at the beginning of 2019, and one is making its way to the eastern U.S. Polar vortexes can push frigid air straight from the arctic tundra into more temperate regions. But just what is this weather phenomenon?

How does a polar vortex form?

Polar vortexes are basically arctic hurricanes or cyclones. NASA defines them as “a whirling and persistent large area of low pressure, found typically over both North and South poles.” A winter phenomenon, vortexes develop as the sun sets over the pole and temperatures cool, and occur in the middle and upper troposphere and the stratosphere (roughly, between six and 31 miles above the Earth’s surface).

Where will a polar vortex hit?

In the Northern Hemisphere, the vortexes move in a counterclockwise direction. Typically, they dip down over Canada, but according to NBC News, polar vortexes can move into the contiguous U.S. due to warm weather over Greenland or Alaska—which forces denser cold air south—or other weather patterns.

Polar vortexes aren't rare—in fact, arctic winds do sometimes dip down into the eastern U.S.—but sometimes the sheer size of the area affected is much greater than normal.

How cold is a polar vortex?

So cold that frozen sharks have been known to wash up on Cape Cod beaches. So cold that animal keepers at the Calgary Zoo in Alberta, Canada once decided to bring its group of king penguins indoors for warmth (the species lives on islands north of Antarctica and the birds aren't used to extreme cold.) Even parts of Alabama and other regions in the Deep South have seen single-digit temperatures and wind chills below zero.

But thankfully, this type of arctic freeze doesn't stick around forever: Temperatures will gradually warm up.

In What Field Was Dr. Martin Luther King, Jr. a Doctor?

Express Newspapers/Getty Images
Express Newspapers/Getty Images

Martin Luther King, Jr. earned a doctorate in systematic theology from Boston University in 1955. He’d previously earned a Bachelor of Arts from Morehouse College and a Bachelor of Divinity from Crozer Theological Seminary. His dissertation, “A Comparison of the Conception of God in the Thinking of Paul Tillich and Henry Nelson Wieman,” examined the two religious philosophers’ views of God in comparison to each other, and to King’s own concept of a "knowable and personal" God.

Some three decades after he earned his doctorate, in 1989, archivists working with The Martin Luther King Papers Project discovered that King’s dissertation suffered from what they called a “problematic use of sources.” King, they learned, had taken a large amount of material verbatim from other scholars and sources and used it in his work without full or proper attribution, and sometimes no attribution at all.

In 1991, a Boston University investigatory committee concluded that King had indeed plagiarized parts of his dissertation, but found that it was “impractical to reach, on the available evidence, any conclusions about Dr. King's reasons for failing to attribute some, but not all, of his sources.” That is, it could have been anything from malicious intent to simple forgetfulness—no one can determine for sure today. They did not recommend a posthumous revocation of his degree, but instead suggested that a letter be attached to the dissertation in the university library noting the passages lacked quotations and citations.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

This article was originally published in 2013.

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