Coal is formed through the fossilization of dead plant matter. Since land plants only emerged on Earth about 450 million years ago, coal itself dates back only 300 or 400 million years. This means that diamonds -- which are over a billion years old -- predate coal by hundreds of millions of years.

Considering Vince McMahon has harbored rivalries with everyone from Triple H (who would go on to be his son-in-law) to Bret "The Hitman" Hart to Randy Orton -- even with his own children Stephanie and Shane -- his actual childhood idol makes a lot more sense.

The many attractions of Dolly Parton's Dollywood theme park in Pigeon Forge, Tennessee, include fairway rides, a reproduction of the two-room cabin in which Dolly grew up, an entire water park, and the Eagle Mountain Sanctuary, an enormous aviary measuring 30,000 square feet

As Karen Carpenter struggled to overcome her eating disorders, she found love -- or so she thought.

We walked on the moon for the first time in 1969, and since then there's been a rarefied group of people who've set foot on our planetary satellite. The United States no longer sends people to the moon on missions, so the group remains small. (And no, there's no evidence we faked it.)

It was "Wind of Change" that has led some to believe that Scorpions were reaching beyond mere musical expression and into the realm of politics. It wasn't just a song about envisioning a free future for all people, as the lyrics say -- oh, no. It was CIA-created propaganda.

Gregg Allman was diagnosed with Hepatitis C in 2007, for which he received a liver transplant. In the following years, he would go on to suffer from liver cancer. The band continued to tour, but Gregg's worsening health problems would force them to stop in 2014.

"Weird Al"'s career really started with "My Bologna," a parody of the Knack's hit "My Sharona," described succinctly by Rolling Stone: "accompanied only by his accordion, the song is a G-rated ode to bologna" which "launched a hugely successful career that is going strong to this day."

Woodstock was a seminal moment of 1969, but it was not heaven on earth. Here are false things believed about Woodstock.

A prison can't operate without staff, including Alcatraz. Many of the police officers, prison guards, and other staff who worked in the prison lived on the island with their families, including young children. There was another side to the island, where staff kept their homes and raised kids.

The Biblical story of the Garden of Eden centers around four key characters: God, Adam, Eve, and the serpent. To many, the serpent is a particularly interesting character, representing cunning and evil, standing in opposition to God's goodness and grace.

According to NBC Sports, however, Coleman invested his money in development deals in his hometown of Detroit, Michigan in hopes of "trying to turn around a city in need of someone willing to make big moves there."

We've also littered the heavens. We know it might be a problem someday. There's everything we've left behind on the Moon and on Mars, the probes we've sent deep into space, and probes like Venera 7 that have dropped onto Venus. Closer to home is the trash currently orbiting Earth itself.

Not all of Kennedy's mistresses received the same treatment. Mary Pinchot Meyer, a talented painter and the daughter of a wealthy progressive lawyer and a journalist, was a long-time Kennedy mistress whose death, although less well known than Marilyn Monroe, was no less shrouded in mystery.

One of Tubman's encounters with danger stands out from the rest, but not because of a slave owner or someone on the hunt for her reward money. It came from a hustler who was uncommonly good at his job, who left Tubman beaten and bound in the woods of Auburn, New York.

t's estimated that somewhere around 5.9 million people visit the Grand Canyon each year, and, sometimes, bad things happen. Occasionally, people just disappear.

Joan Jett knew she wanted to cover "I Love Rock 'n Roll" the first time she heard the original song by The Arrows. Here's why she was never the same after.

Many of Hill's friends and collaborators point to one relationship which has been especially destructive since her 1990s hey-day, a relationship which came into being just as Hill was at her most vulnerable, feeling the pressures of both public life and supporting a family as a working mother.

Although they can be annoying at times, nose hairs actually serve a vital health purpose. Coated with a thin layer of mucus and as dense as the hair on your head, nose hairs protect us from pollen, dust, germs, and other airborne particles we would otherwise breathe in -- a first line of defense.

Some of the biggest acts around performed, including Jimi Hendrix, The Who, Joan Baez, Jefferson Airplane, Santana, The Grateful Dead and Janis Joplin, but Dylan took a hard pass. What could have been more important?

The legend is that Johnson entered into a Faustian pact: that his great ability as a guitarist and vocalist was down to Johnson selling his soul to the devil, a deal which took place at the crossroads of Highways 49 and 61 in Mississippi, according to how the legend is recounted by Biography.

In August 1877, during a poker game, McCarty trades insults with a local blacksmith, Francis Cahill. The game turns violent. Cahill pins McCarty to the ground, and McCarty shoots. Cahill dies two days later.

Whitesnake is 1987 all the way, and the band's megahit "Here I Go Again" is perhaps the catchiest hard rock song of all time. Whitesnake has a complex history that stretches over four decades. Here are a few things you probably don't know about the band.

The Bee Gees are one of the most extraordinarily successful musical acts of all time. Here's everything you actually know about the Bee Gees that isn't true.

It's been connected to the Knights Templar, and some believe it wound up in Ethiopia. But what exactly is really supposed to be inside the Ark, anyway?

The 19th-century photographer Mathew Brady, who went from taking portraits of the rich and famous to taking death portraits on Civil War battlefields, is known for depicting the cost of war. The truth of Civil War photographer Mathew Brady is he funded the photojournalism himself and went into debt.

With voguish gangsters and bootleggers like Al "Scarface" Capone and George "Machine Gun Kelly" Barnes capturing the public's attention, the government knew it needed an equally dramatic response to their sensational criminality, one that would strike fear in the hearts of potential lawbreakers.