The glowing brown sacks that adorn Albuquerque walkways, churches and homes each holiday season are called luminarias and date back more than 300 years. The New Mexican tradition began when the Spanish villages along the Rio Grande displayed the unique and easy to make Christmas lanterns, called luminarias to welcome the Christ child into the world. A traditional luminaria is a brown paper bag, which has been folded at the top, filled will a couple cups of sand and a votive candle.