Known chiefly from sources related to democratic Athens, the Sophists emerge from the competitive ethos of aristocratic Greek society. The impetus for the Sophistic movement was the transformation of social and political relations within the Greek world following the defeat of Xerxes. These changes were most dramatically felt and best recorded at Athens. The phenomenal wealth of fifth-century Athens increased the number of Athenians aspiring to an aristocratic lifestyle and intensified the competition for social recognition and for preeminence in politics. Verbal dexterity was a key attribute in the pursuit of such standing. Sophists attracted students by promising to impart such skills in the young men of wealthy families. The turmoil of war in the late fifth century encouraged some of those influenced by Sophists to turn toward oligarchic revolution at Athens, tainting the reputation of Sophistic learning, leading to the condemnation of Socrates for his engagement with these self-proclaimed teachers of political virtue and wisdom.