La Tomatina started the last Wednesday of August in 1945 when some young people went to the town square to attend the Giants and Big-Heads figures parade. The young boys decided to parade with a musician.
The energy of these young people caused one person to fall off the float. The participant flew into a fit of rage and started to hit everything in his path. There was a market stall of vegetables that fell victim to what soon became a furious crowd. People started to pelt each other with tomatoes until the local law enforcement ended the vegetable battle.
The following year, the young people picked a quarrel by their own decision and brought the tomatoes from home. Although the police broke up the early tradition in the following years, the young boys had made history without being conscious about it. La Tomatina was banned in the early 50s, which was not a problem for the participants who were even arrested. But the people spoke and the festivity was again allowed with more participants and more frenetic feelings.
The following year the young people repeated the fight on the last Wednesday of August, only this time they brought their own tomatoes from home. They were again dispersed by the police. After repeating this in subsequent years, the tradition was established. In 1950, the town allowed the tomato hurl to take place, however the next year it was again stopped. A lot of young people were imprisoned but the Buñol residents forced the authorities to let them go. The festival gained popularity with more and more participants getting involved every year. After subsequent years it was banned again with threats of serious penalties. In the year 1957, some young people planned to celebrate "the tomato's funeral", with singers, musicians, and comedies. The main attraction however, was the coffin with a big tomato inside being carried around by youth and a band playing the funeral marches. Considering this popularity of the festival and the alarming demand, 1957 saw the festival becoming official with certain rules and restrictions. These rules have gone through a lot of modifications over the years.
Another important landmark in the history of this festival is the year 1975. From this year onwards, "Los Clavarios de San Luis Bertrán" (San Luis Bertrán is the patron of the town of Buñol) organised the whole festival and brought in tomatoes which had previously been brought by the local people. Soon after this, in 1980, the town hall took the responsibility of organizing the festival.