International Firefighters' Day (IFFD) is observed annually on May 4. It was created in 1999 to honor the memory of five firefighters who died in a wildfire in Australia.
Every May 4 many people around the world take on pink shirts to show their support of Anti-Bullying Day. This event was started in 2012 and it's already known in 25 countries around the world.
Occupation safety plays an important role in life of every working man and woman around the world. Everyday they return home safe and sound, but never notice all people, who stand behind it. Occupation Safety and Health Professional Day (OSHPD) was established in the USA to honor these unsung heroes.
Star Wars Day is an informal observance celebrated by fans of the Star Wars franchise created by George Lucas. It is held annually on May 4.