The specific event that made Hobbes skeptical of the Social Contract Theory is the event of the English Civil War between 1642–1651.
During this period, there were chaos and disorder in England. Thus, Hobbes was influenced by this event, which changed his views on the social contract.
This is evident when initially, Hobbes believed in his work titled "The Elements of Law" that the people's approval did not inevitably shape patrimonial kingdoms.
However, after the Civil war period in England, he shifted position and then claimed that the people's permission certainly shaped patrimonial kingdoms.
Hence, in this case, it is concluded that the correct answer is England Civil War between 1642–1651.
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