World Animal Day is an international day of action for animal rights and welfare celebrated annually on October 4, the feast day of Francis of Assisi, the patron saint of animals.
It is said to have been originated by cynologist (one who studies canines, or dogs) Heinrich Zimmermann when he organized the first World Animal Day on 24 March 1925. However Argentina has observed World Animal Day since 1908 when it was spear headed by Ignacial Lucas Albarracín director of the Zoological Garden and and president of the Animal Protection Association of Buenos Aires.
Today, World Animal Day is growing into a global event that unites the animal protection movement. In the Netherlands, it is as well-known as Mother’s Day or Valentine’s Day. In 2006, the Polish Parliament established 4 October as Animal Day.