Before becoming a global phenomenon broadcast to millions of homes, San Fermín was three distinct celebrations that history eventually merged into one: religious rites in honour of the patron saint, a commercial livestock fair, and bull-related festivities. That mixture, simmered slowly over centuries, is what we know today.
Three origins
The religious feast of San Fermín, bishop and patron saint of Navarre, was originally celebrated in October; it moved to July in the 14th century because travel conditions were better in the summer. The commercial fair took advantage of the crowds gathering for the livestock trade. And the bull-related festivities, tied to that same fair, eventually gave rise to the Running of the Bulls as we understand it today: driving the bulls from the corrals to the bullring, running ahead of the runners who spurred the herd onward.
The leap to worldwide fame
For centuries, San Fermín was essentially a local, regional festival. Its great leap onto the international stage came in the 20th century thanks to a foreign writer: Ernest Hemingway, whose novel The Sun Also Rises (1926) vividly captured the intensity and colour of Pamplona in July. The book sparked curiosity among readers around the world, many of whom began travelling to Pamplona to experience firsthand what they had read.
From Hemingway to the 21st century
That literary spark, combined with decades of television broadcasts of the bull run, turned San Fermín into one of the most recognisable festivals in the world, drawing visitors from every continent each July.
The festival today: tradition and modernity
Today's San Fermín keeps the essence of its three origins — the religious rite of the procession, the bullfighting pulse of the run and the corrida, and the popular festive spirit — while adding more cultural, musical and family-friendly programming every year. That combination of historical roots and constant evolution is probably why the festival keeps growing instead of fading with time.