1 Impressive (horse), an Appendix American Quarter Horse (1969-1995)  2 Impressive Dagger Moth, a moth of the Noctuidae family; see Acronicta impressa.  Impressive Syndrome, a genetic disorder that occurs in horses and humans; see Hyperkalemic periodic paralysis.
The most significant of these religions are the Jehovah Witnesses who number approximately half a million people. Other interpretations of the Christian religion in Italy include the Protestants. Muslim Religion In Italy:. Today the Muslim religion is the second largest religion in Italy. The total number of followers of the Muslim religion in Italy currently stands at about 700,000. However, it should be noted that the majority of followers of the Muslim religion in Italy are either recent immigrants or second generation immigrants to Italy.
The faith represents approximately one-third of the world's population and is the largest religion in the world, with the three largest groups of Christians being the Catholic Church, Protestantism, and the Eastern Orthodox Church. The largest Christian denomination is the Catholic Church, with 1.09 billion adherents.