The word golem is used in the Bible to refer to an embryonic or incomplete substance: Psalm 139:16 uses the word "gal'mi", meaning "my unshaped form" (in Hebrew, root words are defined by sequences of consonants, ie. glm). The Mishnah uses the term for an uncultivated person ("Ten characteristics are in a learned person, and ten in an uncultivated one", Pirkei Avoth 5:7). Similarly, Golems are used today primarily in metaphor either as brainless lunks or as entities serving man under controlled conditions but enemies in others. Similarly, it is a Yiddish slang insult for someone who is clumsy or slow.
The book doesn't specify if the monster was created by one man or several or how he was brought to life. I think we can safely guess that the monster was brought to life using electricity because it has such an influence on Victor. SPOILER ALERT. I would also say that is safe to say that the monster was probably created using more than one man because later on Victor tears apart/destroys the monster's companion before he completes her creation. These are just my thoughts and if anyone has anything else they would like to add please comment
In court, Justine stands calmly before her accusers; her solemn face lends her an exquisite beauty. The prosecutor brings forth a number of witnesses, who provide compelling evidence against her: she was out for the whole night on which the murder was committed; she was seen near to the spot where the body was found; when questioned, she gave a confused and unintelligible answer; and she became hysterical at the sight of William's body. The most damning piece of evidence, however, is the fact that William's miniature, which he had been wearing at the time of the murder, was found in the pocket of Justine's dress.