Many films important to the evolution of the modern zombie are set in the month of May, from the original Night of the Living Dead, 1968, to the well received Dawn of The Dead remake of 2004.
Also, because Spring naturally brings with it a sense of renewal and hopefulness, May is the perfect month to emphasize continued vigilance in the face of the coming zombie pandemic.
Supporters of Zombie Awareness Month wear a gray ribbon to signify the undead shadows that lurk behind our modern light of day. From May 1 through May 31, concerned citizens take this small step to acknowledge the coming danger.
Why Not October?
Despite common misconceptions, zombies - and the threat they represent - are not connected with the late October pagan tradition of Halloween. Witches, ghouls and vampires, all Halloween staples, are otherworldly creatures of old, filled with mysticism and superstition.
Zombies, on the other hand, are biological entities, made of flesh and blood, and functioning under the same laws of science and reason that all worldly beings must.