From the accidental discovery of penicillin to the wrong turn that helped spark World War I, explore four remarkable coincidences that changed the course of history.

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American history is complicated. So are these all-American hits. From "Born in the U.S.A." to "We Shall Overcome" and "Sweet Home Alabama," these songs encapsulate America in all its glory and complexity.
Look back at some of the social media platforms from the 2000s, and realize that kids today will never understand.
Starting a career can be stressful, especially if you live in some of these locations. Data shows the best and worst U.S. cities to get started.
The phrase “cat’s got your tongue” has inspired theories involving witches, sailors, and ancient Egyptians—but its true origins remain unclear.
No, we’re not talking about “middle.” Here’s what the slang word “mid” means.
From burgers rebranded as "Liberty steaks" to the military origins of SPAM and baked beans, explore the fascinating history behind seven classic American cookout staples.
From Amelia Earhart to D.B. Cooper, many theories surround these long-standing aviation mysteries, without any conclusions made.
A few of the Fab Four’s most iconic songs were penned by the “Quiet Beatle.”
We're celebrating Sailor Moon and all the ways the franchise has influenced anime forever.
A poem is the reason why Friday before Memorial Day is National Poppy Day.
How well do you know your 2Pac, TLC, Backstreet Boys, and Nirvana? Test your knowledge of '90s music with this quiz.
Where you live can have an impact on how much debt you’re able to pay off. Check out a map of the United States cities paying off the most household debt.
There's a reason why your Aquafina might taste different from your Fiji—here's why different types of bottled water really do taste different.
Spice up your vocabulary with these 15 words that end with ‘Q.’
They might sound silly now, but these rules were taken very seriously throughout eras in history.
Think you know your fast food history? Match these discontinued menu items to the correct chain in this nostalgic quiz.
From Route 66 to Texas Hill Country, these Memorial Day weekend road trips make for unforgettable drives any time of year.
From indulgent blends of chocolate peanut butter goodness to blueberry goat cheese delights, there's not a pie Guy Fieri won't try.
From waterfalls that fall upwards to leaning towers and boulders teetering on the edges of hillsides, these places all seem to break the rules of gravity.
You can name the show from the main character, but what about the supporting characters? How well do you know your '80s sitcoms?
From “xenon” to “xyst,” here are interesting and unusual words that start with the letter "X"—and what they actually mean.