How did Socrates' constant questioning of his fellow Athenians create enemies for him

Socrates is one of the few individuals whom one could say has so-shaped the cultural and intellectual development of the world that, without him, history would be profoundly different.  He is best known for his association with the Socratic method of question and answer, his claim that he was ignorant (or aware of his own absence of knowledge), and his claim that the unexamined life is not worth living, for human beings. He was the inspiration for Plato, the thinker widely held to be the founder of the Western philosophical tradition.  Plato in turn served as the teacher of Aristotle, thus establishing the famous triad of ancient philosophers: Socrates, Plato, and Aristotle.  Unlike other philosophers of his time and ours, Socrates never wrote anything down but was committed to living simply and to interrogating the everyday views and popular opinions of those in his home city of Athens.  At the age of 70, he was put to death at the hands of his fellow citizens on charges of impiety and corruption of the youth.  His trial, along with the social and political context in which occurred, has warranted as much treatment from historians and classicists as his arguments and methods have from philosophers.

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