Vintage photos show how people decorated for the holidays over the last 100 years

A family gathers around the Christmas tree while a young girl opens her present.

Mike Kurtz/Getty Images

• Families have long decked out their homes for the holidays.
• Some decorations, such as tinsel, remained in style for decades, even as materials evolved.
• Innovations, such as colorful electric lights and mass-produced flocked trees, modernized displays.

This Christmas, you might be thinking back to how your parents or grandparents decorated their homes for the holidays.