Let’s take a look at the different processes for creating life-saving vaccines for multiple diseases.

BIG QUESTIONS
Those mysterious white lines you often see on the road right before a storm aren't just for show.
Where the word “woke” came from and how it’s used today.
It’s not just because you’re spending more time indoors.
Ever wonder why the new year officially starts on January 1? Turns out, you can thank Pope Gregory XIII—and Julius Caesar.
Giant piles of nasty, filthy snow will still line your streets, long after the most recent winter storm. What gives?
End-of-year smooching has roots in the parties of ancient Rome, but Thomas Edison had a part to play, too.
Jesus’s birthday is subject to interpretation, and there are plenty of intriguing theories to explain how we landed on December 25 to celebrate Christmas.
Nobody will think you’re talking about baseball season, open season, or any other season. But why?
While it might seem a little more magical if we told you that nobody really knows why Santa lives there, there is a relatively traceable paper trail.
Americans favor 'Merry Christmas,' while Brits opt for 'Happy Christmas.' Here's how we got here.
Myths about elves predate Christmas and Christianity itself.
Why do the Detroit Lions and Dallas Cowboys always take to the field for a Thanksgiving football game? Because it’s tradition! But how did this tradition begin?
Learn about the origins of the yearly tradition, which stems from Ancient Rome.
Breaking down a common belief and what you should know before trying it.
Some mourners leave coins at grave sites rather than flowers. Here's what each denomination means.