A young couple at the Dia de los Muertos (Day of the Dead) celebration in the Fruitvale District in Oakland, California. The Day of the Dead (Día de los Muertos in Spanish) is a holiday celebrated mainly in Mexico and by people of Mexican heritage (and others) living in the United States and Canada. The holiday focuses on gatherings of family and friends to pray for and remember friends and relatives who have died. The celebration occurs on the 1st and 2nd of November, in connection with the Catholic holy days of All Saints' Day and All Souls' Day which take place on those days. Traditions include building private altars honoring the deceased, using sugar skulls, marigolds, and the favorite foods and beverages of the departed, and visiting graves with these as gifts.\n\nScholars trace the origins of the modern holiday to indigenous observances dating back thousands of years, and to an Aztec festival dedicated to a goddess called Mictecacihuatl (known in English as "The Lady of the Dead").