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Mardi Gras

carnival
Also known as: Fat Tuesday
Top Questions

What is Mardi Gras, and why is it celebrated?

Why is the celebration called Mardi Gras?

How is Mardi Gras celebrated in New Orleans?

What are some traditional foods associated with Mardi Gras?

News •

Wake Up NOLA: 2 months to Mardi Gras 2027 • Nov. 6, 2026, 9:00 AM ET (The New Orleans Times-Picayune)
Sydney Mardi Gras party returns for an 'unapologetic queer celebration' • Nov. 4, 2026, 8:41 PM ET (ABC News (Australia))
Krewe of Iris crowns monarchs, announces 2027 theme at Goddess Gala • Oct. 25, 2026, 10:00 AM ET (The New Orleans Times-Picayune)
Mardi Gras krewes no longer required to use snail mail to advertise for new members • Oct. 19, 2026, 11:00 AM ET (The New Orleans Times-Picayune)

Mardi Gras, a Christian holiday marking the final day before the season of Lent. Often called “Fat Tuesday,” it has evolved into a major cultural celebration. Its traditions emerged in Europe within the broader pre-Lenten festival known as Carnaval (or Carnival), incorporating elements of earlier seasonal festivities associated with the coming of spring. The day is observed on the eve of Ash Wednesday in numerous countries, particularly those with historically large Roman Catholic populations. In the United States it is most closely associated with New Orleans, where it is celebrated with large parades, music, and public festivities.

Origins of the holiday

The origins of Mardi Gras can be traced back thousands of years to ancient pagan festivals celebrating the transition from winter to spring. As Christianity spread through the Roman world, church authorities adapted certain existing customs into the developing liturgical calendar rather than attempting to eliminate them entirely. Over time the period preceding Lent became associated with festivity and feasting, eventually turning into what would become Mardi Gras. It served as a final celebration before Lent, the 40-day period of fasting and penitence in the Christian liturgical calendar observed between Ash Wednesday and Easter Sunday.

These pre-Lenten traditions gradually spread throughout Europe, particularly in France, Spain, Germany, and Italy, and were later carried to the Americas. In the United States the celebration became linked with New Orleans, whereas in Brazil the broader Carnaval season developed into one of the world’s largest public festivals.

Holy week. Easter. Valladolid. Procession of Nazarenos carry a cross during the Semana Santa (Holy week before Easter) in Valladolid, Spain. Good Friday
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What does Mardi Gras mean?

The term Mardi Gras is French, with Mardi meaning “Tuesday” and Gras meaning “fat.” In France the eve of Ash Wednesday came to be known as “Fat Tuesday” because of the custom of indulging in rich foods before the onset of Lenten fasting. In the days preceding Lent, households traditionally stocked up on fatty items such as meat, eggs, milk, butter, and cheese—foods that would be limited or avoided during the penitential season.

The broader celebration became known as Carnaval, a word that may derive from Medieval Latin expressions meaning “to remove meat,” another nod to the fasting and dietary restraint that follow the festivities.

Modern celebrations

In contemporary practice Mardi Gras is marked by festive meals, social gatherings, and public celebration, though customs vary by region.

Food remains central to the day’s identity. Because meat, dairy products, and eggs were historically restricted during Lent, households used these ingredients in advance of the fast. Therefore, savory pancakes, fritters, crĂȘpes, and other rich pastries are often associated with the celebration in many countries.

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In the United States Mardi Gras is most associated with New Orleans. The earliest recorded Mardi Gras observance in French Louisiana occurred in early March 1699, when explorers Pierre Le Moyne d’Iberville and Jean-Baptiste Le Moyne de Bienville celebrated their arrival near the present-day city and named their landing site Pointe du Mardi Gras. Some historians contend, however, that Mobile, Alabama, established the first Mardi Gras tradition in North America.

In the years that followed, French colonial settlements, including New Orleans, observed the holiday with public festivities, masked balls, and formal dinners. After Spain assumed control of Louisiana in the 18th century, Spanish officials curtailed many of these celebrations. The restrictions remained largely in place until the early 19th century, when Louisiana became a U.S. state in 1812, and Mardi Gras traditions were revived and expanded.

Today New Orleans hosts numerous parades during Mardi Gras organized by social clubs called krewes. These processions feature elaborately decorated floats, masked riders, marching bands, and the ceremonial throwing of beads and other tokens in the traditional colors of purple, green, and gold—symbolizing justice, faith, and power, respectively. Celebrations build throughout the season and culminate on Mardi Gras Day, highlighted by such major parades as that of Rex, the symbolic “King of Carnival.” The sharing of king cake, a ring-shaped pastry decorated in festival colors and often containing a small hidden figurine of a baby, remains another enduring custom. Together these traditions have made New Orleans’s Mardi Gras one of the most widely recognized public festivals in the United States.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Melissa Petruzzello.