15 Things You Might Not Know About Tennessee

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1. Tennessee’s Great Smoky Mountains beats both the Grand Canyon and Yosemite as America’s most visited national park.

2. On top of that, Tennessee boasts the third-most visited house in the country (after the White House and Biltmore Estate): Graceland Mansion, the former home of Elvis Presley.

3. The city of Gatlinburg is home to the Salt & Pepper Shaker Museum & Smoky Mountain Spices, which displays over 20,000 different variations of salt and pepper shakers (bearing the likenesses of frogs, musical notes, The Beatles, and others).

4. Ever the diplomat, Greeneville, Tennessee prides itself on displaying the only monument in the United States that pays tribute to both the Union and Confederate Armies.

5. This ideological ambivalence dates back to the war itself. Tennessee provided a wealth of troops to both the Union and the Confederacy during battle; in fact, Tennessee was responsible for providing the Union with more soldiers than all other Southern states combined.

6. It’s understandable why Tennessee might be so devoted to preserving Civil War history: A whopping 38 battles in the war were fought on Tennessee soil, more than any other state but Virginia.

7. Tennessee wasn’t just the birthplace of Elvis Presley's career, but of country music on the whole. While the 1920s saw the nation’s musical hopefuls rush to New York to land record deals, producer and talent scout Ralph Peer set up camp in Bristol, angling to catch wind of the more genuine sound enjoyed by the locals. Peer is credited with launching the musical genre by signing acts such as Jimmie Rodgers, Mamie Smith, and the Carter Family, and bringing unprecedented attention to the country and folk scene. Appropriately, Bristol is home to the Birthplace of Country Music Alliance.

8. This brand of music is celebrated by Nashville’s own radio mainstay, the Grand Ole Opry stage concert and radio show. Broadcasting consistently since 1925, the Grand Ole Opry is the longest running radio program in American history.

9. In 1905, Nashville, Tennessee, welcomed McKissack & McKissack, the first architectural firm founded by black men. The institution is still in operation today, although its headquarters have relocated to New York City.

10. Resting beneath the grounds of Tennessee is a beautiful secret: the Lost Sea, an underground lake that finds its home among the gargantuan Craighead Caverns system in Sweetwater. The Lost Sea is the largest sub-glacial underground lake in America, and the second largest in the world (after Namibia’s Dragon Breath Cave).

11. Though not invented in Tennessee, mini-golf was patented there by one Garnet Carter. It was originally known as Tom Thumb Golf.

12. Although three United States Presidents have been marked by a political and residential affiliation to Tennessee (Andrew Jackson lived in Nashville, James Polk served as the Governor of Tennessee from 1839-1841, and Andrew Johnson settled in Greeneville and was elected to the Tennessee House of Representatives, Tennessee Senate, and served as Tennessee's governor from 1853-1857), no Commander-in-Chief to date was ever born in Tennessee.

13. Coca Cola was invented by a Georgian and first bottled by a Missourian company, but it was two Tennessean businessmen (Benjamin F. Thomas and Joseph B. Whitehead) who purchased control over the production of the soft drink. How much did it cost Thomas and Whitehead to convince company founder Asa Candler to sign over bottling rights to their Chattanooga company? Exactly one dollar.

14. Among the bounty of delicacies invented in Tennessee: Mountain Dew, cotton candy, and moon pies.

15. A good deal of work on the Manhattan Project was actually done in Tennessee. The facility K-25 was founded and built in Oak Ridge for secret work on the atomic bomb, and was, at the time, the largest factory in existence. The 12,000 workers needed for the K-25 construction and their families lived nearby in a temporary communited called Happy Valley.

This Innovative Cutting Board Takes the Mess Out of Meal Prep

There's no way any of these ingredients will end up on the floor.
There's no way any of these ingredients will end up on the floor.
TidyBoard, Kickstarter

Transferring food from the cutting board to the bowl—or scraps to the compost bin—can get a little messy, especially if you’re dealing with something that has a tendency to roll off the board, spill juice everywhere, or both (looking at you, cherry tomatoes).

The TidyBoard, available on Kickstarter, is a cutting board with attached containers that you can sweep your ingredients right into, taking the mess out of meal prep and saving you some counter space in the process. The board itself is 15 inches by 20 inches, and the container that fits in its empty slot is 14 inches long, 5.75 inches wide, and more than 4 inches deep. Two smaller containers fit inside the large one, making it easy to separate your ingredients.

Though the 4-pound board hangs off the edge of your counter, good old-fashioned physics will keep it from tipping off—as long as whatever you’re piling into the containers doesn’t exceed 9 pounds. It also comes with a second set of containers that work as strainers, so you can position the TidyBoard over the edge of your sink and drain excess water or juice from your ingredients as you go.

You can store food in the smaller containers, which have matching lids; and since they’re all made of BPA-free silicone, feel free to pop them in the microwave. (Remove the small stopper on top of the lid first for a built-in steaming hole.)

tidyboard storage containers
They also come in gray, if teal isn't your thing.
TidyBoard

Not only does the bamboo-made TidyBoard repel bacteria, it also won’t dull your knives or let strong odors seep into it. In short, it’s an opportunity to make cutting, cleaning, storing, and eating all easier, neater, and more efficient. Prices start at $79, and it’s expected to ship by October 2020—you can find out more details and order yours on Kickstarter.

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

14 Powerful Facts About the Hoover Dam

Ryan Thorpe, Unsplash // Public Domain
Ryan Thorpe, Unsplash // Public Domain

The hulking Hoover Dam has been holding back the Colorado River and generating power since 1936, but you may be surprised to learn just how eventful its construction and naming were.

1. The construction of the Hoover Dam forced Las Vegas to clean up its act.

Once the public caught wind of the plans to build a dam in Nevada’s Black Canyon, surrounding cities appreciated the potential economic windfall such an undertaking would bring. Las Vegas became especially eager to house the project’s headquarters, even going so far as to sacrifice its “party city” reputation to appear worthy of the honor. When Secretary of the Interior Ray Lyman Wilbur, a major player in the project, came to town for a 1929 visit, local authorities in Las Vegas shut down a slew of its speakeasies and brothels for the day in an attempt to seem classier.

2. An entire city sprang up to support construction of the Hoover Dam.

Panorama of Boulder City, Nevada from Water Tank Hill
1932 panorama of Boulder City, Nevada, from Water Tank Hill.
U.S. National Archives and Records Administration, Wikimedia Commons // Public Domain

Sin City’s efforts were ultimately futile, and a planned community went up to house the 5000-person workforce. Miles of paved streets and railroad tracks connected the canyonside village to the project site and neighboring Las Vegas. The community, known as Boulder City, is still standing. However, delays in its development forced a good number of early workers to reside in the nearby Ragtown, which lived up to its name with extremely humble living conditions.

3. The Hoover Dam contains enough concrete to stretch across the United States.

The Bureau of Reclamation—the department subsidizing the project—supplied a whopping 3.25 million cubic yards of concrete for the dam itself, plus another 1.11 million cubic yards for the power plant and additional facilities. This quantity of concrete would be enough to build 3000 miles of road—a full-sized highway from one end of the United States to the other. Additionally, the dam required about 5 million barrels of cement, nearly equaling the total quantity of cement the Bureau used in its previous 27 years of existence.

4. The world’s largest refrigerator cooled all the concrete used for the Hoover Dam.

As you may guess, all this concrete posed some challenges. Without engineers’ intervention, it would have taken the massive blocks of poured concrete 125 years to cool, and this gradual drying would have left the pieces susceptible to breaking. To speed up the process, an engineering team designed a mammoth refrigeration machine. The supersized fridge dispensed upwards of 1000 tons of ice every day, speeding up the cooling and lopping decades off the project’s timeline.

5. The first summer of construction on the Hoover Dam had record-breaking heat.

The giant fridge had its work cut out for it. Work on the Hoover Dam kicked off in April 1931, not long before Nevada’s Clark County weathered some of its hottest temperatures on record. The month of June delivered an average daily high of 119°F, prompting a wave of heatstroke among workers.

6. The Hoover Dam’s laborers were terrific showmen.

Native Americans employed on the construction of Hoover Dam as high-scalers.
A group of Native Americans who worked on the Hoover Dam as high scalers, 1932.
National Archives and Records Administration, Wikimedia Commons // Public Domain

Despite the punishing temperatures, construction attracted curious and enthralled spectators from across the country. Even more entertaining than the technological feats of the project were the death-defying antics of the “high scalers,” who rappelled down the Black Canyon to remove loose rock from the gorge’s walls. While one might expect such a job to be handled with extreme caution, the high scalers became famous for their playful, albeit ill-conceived, stunts.

Spectators were particularly fond of the antics of daredevil Louis Fagan, nicknamed “The Human Pendulum” and “One-Rope Fagan.” When teams worked on outcroppings in the canyon walls, they would move from one area to another by locking their arms and legs around Fagan and having him swing them to their next spot.

7. One heroic high scaler saved his boss’s life during construction on the Hoover Dam.

Fagan was impressive, but Oliver Cowan trumped his fellow high scalers when he snatched his falling supervisor right out of the sky. When Bureau of Reclamation engineer Burl R. Rutledge lost his hold on a safety line at the top of the canyon, he would have plummeted to his demise had Cowan, who was working 25 feet blow, not grabbed his leg as he fell. Shortly after the episode, the city of Las Vegas lobbied for a Carnegie Medal in recognition of the local man’s bravery.

8. The Hoover Dam’s chief engineer badmouthed his workers to the local press.

Not everyone was as impressed with the workforce. The hazards of the construction site and poor conditions in Ragtown contributed to the labor force’s decision to strike in 1931. A committee formed to express the workers’ demands, to which the project’s chief engineer and superintendent, Francis Trenholm Crowe, was defiantly unsympathetic. In fact, Crowe contested each of the team’s qualms with the suggestion of eagerness to have the workforce replaced. Print interviews in local news publications quoted Crowe as calling his men “malcontents” who he “would be glad to get rid of.” The hard line gambit worked, and eventually the laborers returned to work.

9. Nobody really wanted to name the dam after Herbert Hoover.

In retrospect, it seems strange that one of the country’s most impressive feats is named after one of its least beloved presidents. In fact, Hoover is understood to have only earned the honor through a political publicity stunt. In 1930, Secretary of the Interior Wilbur traveled to the site to mark the dam project’s official opening. He took advantage of the pageantry to declare, “I have the honor and privilege of giving a name to this new structure. In Black Canyon, under the Boulder Canyon Project Act, it shall be called the Hoover Dam.”

In other words, Wilbur named the dam after his boss. As Hoover was already widely maligned for his part in kicking off the Great Depression, the name was hotly contested. Wilbur’s successor, Harold L. Ickes, was a particularly vocal critic, and in 1933 he switched the in-progress structure’s name to “Boulder Dam.”

10. Herbert Hoover wasn’t even invited to the dam’s dedication.

Interior Secretary Harold L. Ickes delivers his talk at the dedication of Hoover Dam
Interior Secretary Harold L. Ickes delivers his talk at the dedication of Hoover Dam.
Bureau of Reclamation, Wikimedia Commons // Public Domain

Ickes was hardly alone in his low opinion of Hoover. His own boss, Franklin D. Roosevelt, didn’t think much of Hoover’s presidential acumen, either. When FDR oversaw the dedication of the still nebulously named dam in 1935, he declined to invite his predecessor and even refused to give Hoover the expected nod in his ceremonial speech.

11. The Hoover Dam didn’t officially take its name until 1947.

The dam spent the 14 years following Ickes’s proclamation without an official name. Ultimately, on April 30, 1947, President Harry S. Truman signed a law authorizing the original Hoover handle, recognizing the 31st president’s hand in bringing the dam to life in the first place.

12. Nazis attempted to blow up the Hoover Dam.

In 1939, the United States government learned of a pair of German Nazi agents’ scheme to bomb the Hoover Dam and its power facilities. Destruction of the dam itself was not the central goal, but hampering its energy production was a key piece of the agents’ plan to undercut California’s aviation manufacturing industry. To ward off aerial attacks, authorities considered camouflaging the Hoover Dam with a paint job or even building a decoy dam downstream from the real thing. Ultimately, the Germans only managed to get as far as conducting onsite investigative work before their ploy was quashed, thanks to an increase in military security around the dam.

13. Today, the Hoover Dam helps power three states.

The dam’s energy helps keep the lights on for customers in California, Arizona, and Nevada. It creates enough power for 1.3 million people.

14. The Hoover Dam was once the world’s tallest dam.

When it was finished in 1936, the Hoover Dam was remarkable not only for having completed construction a full two years ahead of schedule, but also for its unprecedented stature. The Black Canyon structure stretched 726 feet from base to top, practically soaring above the old record holder, Oregon’s 420-foot-tall Owyhee Dam. After holding the height title for two decades, Hoover was at last outdone by Switzerland’s 820-foot-tall Mauvoisin Dam in 1957. Eleven years later, it lost its domestic title to California’s 770-foot-tall Oroville Dam.