Since the early 20th century, Christmas has evolved from a religious holiday to a hugely popular cultural holiday observed by Christian and secular people across the globe who gather with families, exchange gifts and cards and decorate Christmas trees. Here’s a look at the history, beliefs and the evolution of Christmas:

Northern U.S. states and higher elevations have the best chances of a white Christmas, while southern and western areas are far less likely to see snow this year.

What actually constitutes a white Christmas depends on where you’re celebrating. In the United States, the National Weather Service sets a bar: at least one inch of snow must be on the ground on Christmas morning, or at least one inch must fall during the day. To the north, Canadians have a slightly different measure.

The U.S. Postal Service is set to open on Christmas Eve and December 26 despite an executive order from President Donald Trump.

If you're hoping for a festive skywatching surprise, Christmas week is shaping up to be more active than usual in space. Fast solar wind from a large coronal hole on the sun has already triggered minor (G1) geomagnetic storms and forecasters say unsettled conditions could persist into Christmas.

After two years of subdued Christmas celebrations due to war in Gaza, thousands of people have flocked to Bethlehem's Manger Square on Christmas Eve.

HAZARD, Ky. (WYMT) - While families throughout Kentucky gather to celebrate Christmas, approximately 350 healthcare workers at Hazard ARH will be working to care for patients during the holiday. Brian Springate, CEO at ARH Hazard said it takes a plethora of people to run a hospital, no matter the day.

In today's Dear Annie column, Christmas message honoring joy, grief, boundaries and moments, reminding readers they’re not failing, they matter, peace can exist in imperfect holidays.

Maison Chinoise, Open for brunch 10:30 a.m. to 3 p.m. and dinner 3 p.m. to 9 p.m. The Palm, Open 12 p.m. to 8 p.m. Toulouse Cafe and Bar, Christmas Day brunch 10:30 p.m. to 3 p.m., dinner 3 p.m. to 9 p.m. Vic & Anthony's, Open 4 p.m. to 9 p.m.

Del Frisco’s restaurants will be open for business on the holiday. Many Denny’s restaurants will be open on Christmas. Eddie Merlot’s restaurants will be open on the holiday. Select El Pollo Loco locations will be open on Christmas. Customers can view the full list on the chain's website.