Mardi Gras - Fat Tuesday, the day before Ash Wednesday and the Carnival season before Lent

Mardi Gras on the day before Ash Wednesday is the pre-Lenten Carnival season's culmination, best known for the New Orleans tradition but observed worldwide on the local Fat Tuesday.

The one-line summary

Pre-Lenten Carnival on Fat Tuesday. New Orleans celebration is the most famous in the US, with parades, masquerade balls, and King Cake. Carnival is observed worldwide on the same date with regional variations.

The Lent origin

Mardi Gras has roots in the Christian liturgical calendar. Lent is the 40-day period of fasting and reflection preceding Easter Sunday. The word "Mardi Gras" ("Fat Tuesday") refers to the last day on which rich foods (eggs, butter, meat) could be eaten before the Lenten fast began. The day is observed 46 days before Easter (40 fasting days plus six Sundays). The Carnival season (the broader pre-Lenten celebration period) begins in many places on Epiphany (January 6) and runs through Fat Tuesday.

The tradition's pre-Christian roots reach back to the Roman Saturnalia and the Celtic Imbolc, both spring festivals. The Christianisation of the festival occurred in the early Middle Ages; by the 12th century many European cities had established Carnival as a major civic event.

The New Orleans tradition

The French brought the celebration to Louisiana in the late 17th century. French explorers held a small celebration near the present-day site of New Orleans in 1699. The first formal Mardi Gras ball in New Orleans was held in 1703 (in Mobile, Alabama, not New Orleans itself); the New Orleans ball tradition began in the 1820s. The first public New Orleans parade was held in 1857 by the Mistick Krewe of Comus, the oldest continuously active krewe.

Mardi Gras colors (purple, green, and gold) were formalised by the Rex parade in 1872, with the symbolic meanings of justice (purple), faith (green), and power (gold). The king cake tradition (a ring-shaped cake with a plastic baby inside) is also part of the celebration, with the baby symbolising the Christ child and the finder obligated to host the next party. The cake is served throughout the Carnival season, not only on Fat Tuesday.

The krewes and the parades

New Orleans Mardi Gras krewes are the private clubs that organise the parades and balls. Each krewe chooses a theme and a royal court (King, Queen, Captains). The oldest krewe, Comus, was founded in 1856; Rex (1872) is the krewe most associated with the official Mardi Gras colors. Endymion, Bacchus, and Orpheus (the latter founded by Harry Connick Jr.) are the larger modern krewes with broader membership. Krewes vary widely in exclusivity: some have hundreds of members with paid annual dues in the thousands of dollars; others are more inclusive.

Mardi Gras Indians are a distinct tradition in New Orleans, with elaborate hand-sewn suits worn by African American communities on Mardi Gras Day. The tradition emerged in the 19th century as a tribute to the Native Americans who sheltered runaway slaves; the suits can take a year to construct and weigh up to 100 pounds. The Mardi Gras Indians "second line" through the streets of the Tremé and Central City neighbourhoods on Fat Tuesday.

Carnival around the world

Carnival is observed worldwide on the local Fat Tuesday (and often for the week preceding). The major global Carnivals:

• Rio de Janeiro (Brazil) — the largest Carnival globally; samba schools compete in the Sambadrome Marquês de Sapucaí; estimates of attendance range from 1.5 to 5 million attendees across the city. The Brazilian Carnival was inscribed on UNESCO's Intangible Cultural Heritage list in 2024.
• Venice (Italy) — Carnevale di Venezia, the oldest Carnival tradition (dating to the 13th century); famous for its baroque masks, masquerade balls, and the Flight of the Angel from the bell tower of St Mark's.
• Trinidad and Tobago — calypso, soca, and steel pan music with elaborate "playing mas" costumes. The Trinidad Carnival is the most prominent Caribbean Carnival tradition.
• Cologne (Germany) — Karneval, with political satire and the Rosenmontag parade; one of the major German Karneval celebrations.
• Nice (France) — one of the world's major Carnival celebrations, with flower parades (Bataille de Fleurs) and carnival floats along the Promenade des Anglais.
• Quebec City (Canada) — the Quebec Winter Carnival, held in late January / early February, is the largest winter carnival in the world.
• Notting Hill (UK) — Caribbean-style Carnival held in late August, not on Fat Tuesday, but linked to the Caribbean Carnival tradition.

Historical background

Mardi Gras (literally "Fat Tuesday" in French) is the Christian feast day before Ash Wednesday, marking the last day before the Lenten fast. The French name reflects the tradition of using up rich foods (eggs, butter, meat) before the lean Lenten season. Mardi Gras is observed in many countries with significant Catholic populations and is especially prominent in Louisiana (where the tradition arrived with French colonists in the early 1700s), Brazil, Italy (Carnevale), and Germany (Karneval/Fasching).

The New Orleans Mardi Gras tradition dates to 1699 when French explorers held a small celebration near the present-day site of New Orleans. The first formal Mardi Gras celebration in New Orleans was held in 1827. The tradition of krewes (social clubs that organize parades and balls) emerged in the 1850s, with the Mistick Krewe of Comus (1856) being the oldest continuously active krewe. Rex (1872) and others followed.

Origin

Mardi Gras has roots in pre-Christian European festivals (the Roman Saturnalia, the Celtic spring festival of Imbolc) that were Christianized as the last feast day before Lent. The French brought the celebration to Louisiana in the late 17th century. New Orleans hosted its first Mardi Gras ball in 1703 and the first public parade in 1857.

How it is observed

Two weeks of parades in New Orleans (Krewe of Bacchus, Endymion, Rex, Zulu, and others), each with elaborate floats, masked riders throwing beads and doubloons, and themed tableaux. King Cake is shared across the Carnival season. The Zulu Social Aid and Pleasure Club coconuts and the Rex King of Carnival are signature elements.

Legal status

Mardi Gras is not a US federal holiday. It is a legal state holiday in Louisiana (where state offices close on Fat Tuesday) and a few other places. Schools and many businesses in New Orleans close on Fat Tuesday; parades run for the two weeks prior.

Where it is contested

Mardi Gras is broadly accepted. Discussions center on public safety during parades (drunk driving, crime in tourist areas), on the celebration of New Orleans cultural identity, and on the economic dependence on tourism. None of these has produced any alteration of the festival itself.

In other countries

Carnival is observed worldwide on the local Fat Tuesday, with regional variations. Major Carnivals include Rio de Janeiro (Brazil, samba schools in the Sambadrome), Venice (Italy, masquerade balls), Trinidad and Tobago (calypso and steelpan), Cologne (Germany, Karneval), Notting Hill (UK, Caribbean-style), and Quebec City (Canada, Quebec Winter Carnival).

Mardi Gras by the numbers

Sources

• New Orleans Tourism, Mardi Gras: neworleans.com
• Wikipedia, "Mardi Gras": en.wikipedia.org