The origin of the Tomatina festival dates back to 1944.
During a parade ofgigantes y cabezudos, young men who wanted to participate in the event staged a brawl.
Since there was a vegetable stand nearby, they picked up tomatoes and used them as weapons.
They were again dispersed by the police.
After repeating this in subsequent years, the party was, albeit unofficially, established.
The festivities usually begin at around 10 AM with singing and dancing.
Then at about 11 a loud shot rings out, and the chaos begins.
See photos from last yearsTomatina festival.
Photos: Associated Press, Reuters, Getty Images
