Revelers run with Torrestrella’s fighting bulls along the Calle Estafeta during the second day of the San Fermin Running Of The Bulls festival on July 7, 2014 in Pamplona, Spain. (Pablo Blazquez Dominguez/Getty Images)
The history of the bullrunning in Pamplona is not clear. There is evidence of the festival from as far back as the 13th century when it seems the events took place in October as this coincided with the festival of San Fermin on October 10th.
It seems that the modern day celebration has evolved from this as well as individual commercial and bullfighting fiestas which can be traced back to the 14th century.
Over many years the mainly religious festival of San Fermin was diluted by music, dancing, bullfights and markets such that the Pamplona Council proposed that the whole event be moved to July 7th when the weather is far more conducive to such a celebration.
To this day San Fermin remains a fixed date every year with the first bullrun at 8am on July 7th and the last at the same time on July 14.
The joining together of the religious, commercial and bullfighting festivals and the move to July 7th led to the first official celebration of San Fermines in 1591.
This inaugural fiesta was a low key affair in comparison to the modern day running of the bulls as it only lasted two days although there was much merriment involving music, a procession and a bullfight.