The growth of international football

When the first international match was played in 1872, only two countries had a national team. By the time the first World Cup was held in 1930, thirteen national teams took part and several more existed but did not enter. By the 2020s, FIFA had 211 member associations, each with at least a men's national team and most with a women's national team as well. International football has grown in every measurable way across the period — number of teams, number of tournaments, number of matches played, and number of people watching.

The growth has come in several waves. The interwar period saw the World Cup established and continental tournaments begin to appear. The 1950s and 1960s saw the continental confederations form and the World Cup go global. The 1990s and 2000s saw the women's international game grow substantially. Each wave added something new to the international calendar.

The first World Cup, in 1930, had thirteen teams. The next two — 1934 and 1938 — had sixteen each. The 1950 tournament had thirteen again, after several withdrawals, and the post-war pattern of sixteen teams settled in from 1954 onwards. The competition stayed at sixteen teams until 1982, when it expanded to twenty-four, then to thirty-two from 1998. The 2026 World Cup was approved as a forty-eight-team tournament, with twelve groups of four feeding into a thirty-two-team knockout stage.

Each expansion brought more confederations into the tournament. The early World Cups were heavily European and South American; later tournaments have included more nations from Africa, Asia and CONCACAF. The expansion to forty-eight teams gave every confederation more places than in the 32-team era, and was intended to broaden the World Cup's reach further while keeping the competition's format manageable.

The major continental national-team tournaments have all grown across the second half of the twentieth century. UEFA's European Championship, first held in 1960 with four teams in the final stage, grew through eight, sixteen and twenty-four-team formats. The Africa Cup of Nations expanded from a small founding field in 1957 to a twenty-four-team format. The AFC Asian Cup grew from four teams to twenty-four. The Copa América expanded its field through guest sides; the Gold Cup grew its membership.

The pattern was the same in each case. As more national teams qualified to a useful level, the tournaments grew to accommodate them, with longer formats and more matches. Continental tournaments became central parts of the international calendar, giving each region its own regular championship alongside World Cup qualifying.

Women's international football was held back for decades by restrictions and bans imposed by several national associations, including the English FA's 1921 ban on women playing on FA-affiliated grounds. Most of those bans were lifted in the early 1970s, after which women's national teams began to be set up and women's international fixtures began to be played in earnest.

The FIFA Women's World Cup was first held in 1991, in China, with twelve teams. It has grown to thirty-two teams. UEFA's women's European Championship began in the 1980s, the African women's national-team tournament was established in 1991, and continental women's tournaments developed across all six confederations. Women's football was added to the Olympic programme from 1996. The combination of these tournaments has built the women's international calendar to a scale that the men's game took decades longer to reach.

FIFA had seven founding members in 1904. Membership grew steadily through the early twentieth century as more national associations formed and joined, reaching around sixty members by 1950. The big jumps came after decolonisation, as newly independent African and Asian nations set up football associations and joined FIFA, and after the breakup of the Soviet Union and Yugoslavia in the 1990s, which produced more than twenty new members.

By the 2020s, FIFA had 211 member associations, making it larger by membership than the United Nations. Most of those associations have men's national teams capable of taking part in international fixtures, and most also have women's national teams. The membership remains national associations rather than countries, which is why some FIFA members — such as the four British associations, or the Faroe Islands and Gibraltar — represent regions that are not independent states.

By the modern era, the structure of international football was broadly settled. FIFA runs the men's and women's World Cups every four years and a handful of other tournaments. The six confederations each run their own national-team championship, normally every two to four years, plus continental qualifying for the World Cup. Friendly matches and shorter tournaments fill in the rest of the calendar. The result is a year-round international game with major fixtures in almost every month.

The relationship between the international and the club game is one of the continuing tensions in football's modern structure. Top players play heavily packed domestic seasons in the leading European leagues, with international duty added on top during FIFA windows. The balance between the two has shifted across the decades and has continued to change. Across the period from the first match in 1872 to the modern tournament calendar, the international game's growth is one of football's clearest historical stories.