The concept of zombie did not arrive into the North American populace till the late 1920s (Christie 2011, p. 10). It is from there that the concept of zombie underwent a considerable amount of evolution. The original need to serve was replaced with an insatiable instinct to feed off living flesh (Christie 2011, p. 7). In addition, its concept of its creation was replaced by events such as biological and chemical calamities. Whereby, hordes of zombies are created through bites, scratches or contact with contaminated bodily fluids. One of the people responsible for introducing such concepts was an American director named George A. Romero, with Night of the Living Dead (1968) (Christie 2011, p. 9; Farghaly 2014, p. 11). The zombie genre continued
