National Twin Day - December 18
Mon Dec 18th

National Twin Day

All the siblings who enjoy the unique relationship because they share a birthday are commemorated on December 18th.

Twins, whether fraternal or identical, share everything from the start. Although their personalities may be different, they often know what the other is going to say before the words are spoken. Distance isn't an issue either. Twins are able to stay connected whether you live in the United States or around the world.

Of course, mythology teaches us about twins from the start, as does the Bible. We investigate a variety of human conditions from Esau and Jacob to Aphrodite's twin sons Phobos and Deimos to Aphrodite's Phobos and Deimos, as well as the constellation's mortal and immortal twins Gemini.

Notable twins

We've been fascinated by twins for the past several years, as well as the years. Literature embraced the twin duplicity with a zeal. Take Shakespeare's Twelfth Night, for example, and the confusing that ensues with Sebastian and Viola in the aftermath. When twins are depicted on modern-day sitcoms, we're in tears. Phoebe Buffay of the sitcom Friends and, more recently, Sheldon Cooper from The Big Bang Theory humbly portrayed their twin lives.

We're sure that real-life twins intrigue us, too. We are sure to pay attention when twins enter the White House, as was the case with Barbara and Jenna Bush in 2001. Of course, we feel like they're relatives when they play magical characters like James and Oliver Phelps in the Harry Potter series. We're back for more as Fred and George Weasley's roles as Fred and George Weasley.

Any twins have the same aspirations. For example, Mark and Scott Kelly became astronauts and have contributed not only to space exploration but also to scientific research. The U.S. Olympic Hockey Team brought Jocelyne Lamoureux-Davidson and Monique Lamoureux's obsession with hockey together on the U.S. Olympic Hockey Team.

Twins have so much more than DN A. Many of them don't even look alike. They celebrate National Twin Day, one thing is for sure, they celebrate National Twin Day.

How to celebrate #nationaltwinday

To your favorite twins, give them a shout-out. If they are family, relatives, or famous, let them know you're thinking about them. If you're a twin, tell your best twin memory. Images from the Share photos. A twin party is hosted by Host. You should know and celebrate the twins. To post on social media, use the hashtag #NationalTwinDay.

Relevant observances

During the first full weekend in August, twins converged on Twinsburg, OH, to celebrate being twins.

Twin FAQ

Q. What is the difference between identical and fraternal twins?

A. Identical twins hatch from a single fertilized egg, while fraternal twins emerge from two separate fertilized eggs.

Q. How many sets of twins are born each year? According to the Centers for Disease Control (CDC), twins account for approximately 3.4 percent of the population.

Is it possible for twins to have different birthdays?

A. Yes. Yes. The most common reason for twins having different birthdays is due to one twin being born before midnight and the other after midnight. However, many twins are born days, weeks, or months apart. Multiple births being premature, one twin is born early, and the other remains in the womb for the remainder of the pregnancy or as long as possible for growth.