What December 18 celebrates

An observance on December 18 celebrating twins, other multiples, and the bond between them, alongside the science and culture of twinning.

Celebrate Bake Cookies Day with your family and friends - whip up a batch of delicious cookies for everyone to enjoy!

Dress your best (or worst!) for National Ugly Sweater Day - get creative and have some fun with funky patterns, bright colors, and outrageous accessories!

Let's get weird this Wear a Plunger on Your Head Day - show off your creative side and have some fun with it!

It's time to honor all the amazing Deborahs out there on National Deborah Day! Show your love and gratitude for these strong, talented women.

Wake up and smell the coffee - Treat your significant other to their favorite cup of joe, they deserve it.

Celebrate National Roast Suckling Pig Day with delicious recipes and flavorful ingredients - it's the perfect way to treat your taste buds!

Experience the beauty of Arabic Language Day - explore its history, learn new words, and immerse yourself in cultural traditions!

Show your support for International Migrants Day this year - join the movement and help protect the rights of all migrants around the world!

Get ready to honor all the Jeremys out there on National Jeremy Day - it's time to celebrate this awesome name in a big way!

Celebrate National Underdog Day by showing your support to the underdog in your life - cheer them on and show them that they can do anything!

Join us in honoring the fallen on National Wreaths Across America Day - lay wreaths at gravesites to pay tribute and remember their service.

Double the fun on National Twins Day! Celebrate the unique bond of twinship with special activities and shared memories.

Join in the festivities and honor Qatar's rich culture and heritage on their National Day - complete with parades, concerts, and traditional food!

Get ready to honor the rich culture and history of Niger on Republic Day - join in the festivities and celebrate with music, food, and traditional displays!