how did the term come into existence?
From the Greek words  "ánthrōpos" and "morphē".
Anthropomorphism
Anthropomorphism derives from its verb form "anthropomorphize", itself derived from the Greek "ánthrōpos" (, "human") and "morphē"
who did the voice of rush limbaugh on family guy Rush Limbaugh. what is excellence in broadcasting? It is the second episode of a series. which series? "Family Guy". what is the plotline of this episode? The episode features anthropomorphic dog Brian, an adamant liberal, confronting conservative radio talk show host Rush Limbaugh at a book signing in Quahog, and ultimately having a political change of heart when Limbaugh convinces him to read his latest book. what genre is followed in it? Animated comedy series. what does the term which was used to refer the dog brian mean? Attribution of human traits, emotions, or intentions to non-human entities.
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Anthropomorphism [SEP] Etymology
Anthropomorphism derives from its verb form "anthropomorphize", itself derived from the Greek "ánthrōpos" (, "human") and "morphē" (, "form"). It is first attested in 1753, originally in reference to the heresy of applying a human form to the Christian God.