The ancient Olympic Games originated in Olympia, a sanctuary site in the western Peloponnese of Greece, as a religious and athletic festival honoring Zeus, the supreme deity of Greek mythology. The earliest recorded celebration occurred in 776 BC, initially consisting of a single event: a footrace of approximately 200 meters known as the stadion.¹⁰ Over subsequent centuries, the festival expanded to a multi-day celebration held every four years, incorporating wrestling, boxing, the pentathlon, javelin, long jump, and equestrian chariot racing.¹¹ During the festival, participating Greek city-states observed a sacred truce called the ekecheiria, which suspended warfare to allow athletes and spectators safe passage to and from Olympia. Following the Roman conquest of Greece, the Games gradually declined in cultural prominence until Roman Emperor Theodosius I abolished them in 393 or 394 AD as part of an imperial campaign to suppress pagan festivals and establish Christianity as the state religion.

Regional efforts to revive the spirit of the ancient competition emerged in Europe between the seventeenth and nineteenth centuries. In 1612, English barrister Robert Dover inaugurated the annual Cotswold Olimpick Games in Gloucestershire, featuring folk sports such as cudgel playing, horse racing, and hammer throwing. Following the French Revolution, France staged a national festival called L'Olympiade de la République from 1796 to 1798. A more direct influence on the modern institution was established in 1850 by English physician William Penny Brookes, who founded the Wenlock Olympian Games in Much Wenlock, Shropshire, to promote physical and moral education. Brookes also collaborated with Greek philanthropist Evangelis Zappas, who financed the Zappas Olympics, a series of national Greek athletic competitions staged in Athens in 1859, 1870, and 1875.

The international revival of the Games was spearheaded by French aristocrat and pedagogue Baron Pierre de Coubertin. Having visited Much Wenlock in 1890 at Brookes's invitation and been inspired by German archaeological excavations at ancient Olympia begun in 1875, Coubertin sought to establish a recurring global competition that would encourage physical education and international peace. At an international congress convened by Coubertin at the Sorbonne in Paris in June 1894, delegates formally established the International Olympic Committee and selected Athens to host the first modern Olympic Games.¹² The inaugural Games of the I Olympiad took place in April 1896 in the refurbished Panathenaic Stadium, bringing together male athletes from fourteen nations.

Following the success of the 1896 Athens competition, the Olympic Movement faced early organizational challenges when the 1900 Paris and 1904 St. Louis Games were staged as prolonged, secondary attractions alongside World's Fairs, diluting their visibility. The 1900 Paris Games nonetheless marked a historic milestone by admitting female competitors for the first time, with women participating in events such as tennis and sailing. An interim competition held in Athens in 1906, known as the Intercalated Games, helped restore organizational focus and public enthusiasm, though the IOC later withdrew official recognition of the 1906 event in 1949.¹³

As the twentieth century progressed, the scope of the competition expanded beyond warm-weather athletics. Although figure skating and ice hockey had been contested at early Summer editions, the IOC organized an independent "International Winter Sports Week" in Chamonix, France, in 1924, which was retroactively designated as the I Olympic Winter Games. For nearly seven decades, the Winter and Summer Games were celebrated in the same calendar year. Following a structural reform by the IOC, the schedule was staggered beginning with the 1994 Winter Olympics in Lillehammer, Norway, placing the Winter and Summer Games in alternating even-numbered years two years apart.

Global conflicts and public health crises have periodically disrupted the four-year cycle. Three Summer editions and two Winter editions were canceled entirely due to World War I and World War II: the 1916 Summer Games in Berlin; the 1940 Summer Games (initially awarded to Tokyo, then Helsinki) and Winter Games (awarded to Sapporo, then Garmisch-Partenkirchen); and the 1944 Summer Games in London and Winter Games in Cortina d'Ampezzo. The 2020 Summer Olympics in Tokyo became the first edition in history to be postponed rather than canceled, shifting to the summer of 2021 due to the global COVID-19 pandemic.

For much of the twentieth century, the IOC strictly enforced rules of amateurism, barring athletes who received financial compensation for sporting performance.¹⁴ Beginning in the 1970s and accelerating through the 1980s and 1990s, the IOC gradually dismantled amateur restrictions, allowing international sports federations to admit professional athletes. The expansion of the Olympic family also led to the formal integration of parallel multi-sport events.¹⁵ The Paralympic Games, which originated from the 1948 Stoke Mandeville Games in Britain for injured World War II veterans and held their first official summer edition in Rome in 1960 and winter edition in Örnsköldsvik, Sweden, in 1976, have been staged at the same host venues immediately following the Olympic Games since 1988.¹⁶¹⁷ In 2010, the IOC inaugurated the Youth Olympic Games for athletes aged 14 to 17, adding a winter counterpart in 2012.¹⁸

The Olympic Movement is governed by the International Olympic Committee, a non-governmental, not-for-profit organization headquartered in Lausanne, Switzerland, and regulated by the Olympic Charter.¹⁹ The IOC comprises approximately 100 active members, including former athletes, presidents of international sports federations, leaders of national bodies, and independent individuals co-opted by the committee. In March 2025, at the 144th IOC Session in Greece, two-time Zimbabwean swimming gold medalist Kirsty Coventry was elected for an eight-year term as the tenth IOC President.²⁰ Upon formally succeeding outgoing president Thomas Bach on June 23, 2025, Coventry became both the first woman and the first African to lead the organization.²¹

Under the umbrella of the IOC, day-to-day sporting administration rests on two primary pillars: International Federations (IFs) and National Olympic Committees (NOCs). International Federations, such as World Athletics or World Aquatics, serve as the global governing bodies for individual sports, overseeing technical rules, officiating, and qualification standards. The 206 recognized National Olympic Committees represent sovereign states and select territories, holding responsibility for developing Olympic sport within their borders and selecting national delegations for each Games. Since 2016, the IOC has also fielded an Olympic Refugee Team to allow displaced athletes to compete under the Olympic flag.²²

The IOC is entirely privately funded, generating revenue primarily through global broadcast media rights and its Worldwide Olympic Partner (TOP) corporate sponsorship program. During the 2021–2024 financial cycle, the IOC recorded $12.4 billion in total revenue. In the 2024 Olympic year alone, revenues reached $4.415 billion, driven by $3.25 billion in television broadcast rights and $871.5 million in TOP sponsorships.²³ According to IOC financial reports, the organization retains approximately 10 percent of its income for administrative and operational costs while redistributing roughly 90 percent—equivalent to $4.7 million per day during the 2021–2024 cycle—to host city organizing committees, NOCs, International Federations, Olympic Solidarity athlete scholarships, and the International Paralympic Committee.

In response to declining city interest and escalating bidding costs—which historically reached up to $100 million per candidate city—the IOC overhauled its host selection process under its Olympic Agenda 2020 reforms.²⁴ Replacing competitive, multi-year public bidding wars, the IOC established Future Host Commissions that conduct closed-door dialogues with interested cities or regions before recommending a preferred candidate for ratification by the full IOC membership. The reforms also encourage hosts to maximize the use of existing or temporary venues and permit joint bids across multiple cities or broader geographic regions.

The identity of the Olympic Games is anchored by codified visual symbols and ceremonial traditions known as "Olympic properties".²⁵ The centerpiece is the Olympic emblem, designed by Pierre de Coubertin in 1913, which consists of five interlocking rings colored blue, yellow, black, green, and red on a white background.²⁶ The five rings symbolize the union of the five inhabited continents—Africa, the Americas, Asia, Europe, and Oceania—while the six colors (including the white field) were selected because at least one appeared on the national flag of every sovereign nation at the time of the emblem's creation.²⁷ The Olympic flag, bearing the rings, was presented in 1914 and first flown at an Olympic stadium during the 1920 Summer Games in Antwerp.²⁸

The official Olympic motto, originally Citius, Altius, Fortius (Latin for "Faster, Higher, Stronger"), was proposed by Coubertin in 1894 after he borrowed the phrase from his friend Henri Didon, a French Dominican priest. In July 2021, prior to the Tokyo Games, the IOC Session approved an amendment suggested by Thomas Bach to emphasize solidarity, updating the motto to Citius, Altius, Fortius – Communiter, or "Faster, Higher, Stronger – Together". Another prominent symbol, the Olympic flame, was reintroduced in the modern era at the 1928 Amsterdam Games. The tradition of the Olympic torch relay, conceived by German sports administrator Carl Diem, debuted at the 1936 Berlin Games. Months before each Games, a flame is ignited using a parabolic mirror and the rays of the sun at the Temple of Hera in Olympia, Greece, and is carried by relay runners to ignite the central cauldron at the host stadium.

Each edition of the Games begins and ends with elaborate rituals mandated by the Olympic Charter.²⁹ The Opening Ceremony combines an artistic showcase of the host nation's culture with formal protocols, including the raising of the Olympic flag, the performance of the Olympic Anthem (composed by Spiros Samaras with lyrics by Kostas Palamas for the 1896 Games), the symbolic release of doves representing peace, the lighting of the cauldron, and the Parade of Nations. By tradition, the Greek delegation enters the stadium first to honor the birthplace of the Olympics, while the host nation marches last. During the competitions, the top three finishers in each event are awarded gold, silver, and bronze medals on a tiered podium while the national flags of all three medalists are raised and the gold medalist's national anthem is played.³⁰ At the Closing Ceremony, athletes march together without national segregation to signify international unity, the cauldron is extinguished, and the host city's mayor passes the ceremonial Olympic flag to the IOC president, who transfers it to the representative of the next host city.

The Games of the XXXIII Olympiad took place in Paris, France, from July 26 to August 11, 2024, marking the third time the French capital hosted the Summer Olympics after 1900 and 1924.³⁵³⁶ Featuring 329 medal events across 32 sports, the Paris Games introduced breaking (breakdancing) as an optional discipline while retaining skateboarding, sport climbing, and surfing. In the final medal standings, the United States and China tied atop the gold medal count with 40 golds apiece, with the United States leading overall in total medals with 126, followed by China with 91, Great Britain with 65, and host nation France with 64.³⁷³⁸ Following the conclusion of the fourth Winter Youth Olympic Games in Gangwon, South Korea, in early 2024, the fourth Summer Youth Olympic Games in Dakar, Senegal—scheduled from October 31 to November 13, 2026—represent the first IOC sporting event ever staged on the African continent.

From February 6 to 22, 2026, the XXV Olympic Winter Games were held in northern Italy, co-hosted by Milan and Cortina d'Ampezzo as the first Olympics officially shared between two cities.³⁹ The first Olympic Games overseen by IOC President Kirsty Coventry, the 2026 Winter Olympics featured 116 medal events across 16 disciplines, including the Olympic debut of ski mountaineering.⁴⁰⁴¹ Norway led the medal table for the fourth consecutive Winter Games, setting an all-time Winter Olympic record with 18 gold medals and 41 total medals, propelled by cross-country skier Johannes Høsflot Klæbo's six gold medals.⁴²⁴³ The United States finished second with 33 total medals and a national-record 12 Winter golds, while host nation Italy placed third overall with 10 golds and 30 total medals.⁴⁴

Under its reformed selection model, the IOC has confirmed all Summer and Winter Olympic hosts through 2034. The 2028 Summer Olympics will be staged in Los Angeles, California, from July 14 to 30, 2028, making Los Angeles the third city after London and Paris to host the Summer Games three times (following 1932 and 1984).⁴⁵ The 2028 program will feature the Olympic debuts of flag football and squash alongside the return of cricket, lacrosse, and baseball/softball.⁴⁶ In July 2024, the IOC simultaneously awarded the subsequent two Winter editions to address climate change constraints on winter venues: the 2030 Winter Olympics will be hosted across the French Alps region, and the 2034 Winter Olympics will return to Salt Lake City, Utah, which previously hosted in 2002. Between those winter competitions, Brisbane, Australia, is scheduled to host the 2032 Summer Olympics.