Sophocles

Sophocles was a Greek playwright that lived around 400 BC. He was one of the three most important Greek playwright together with Aeschylis and Euripides in the Antient Greece. When Sophocles was around a tender age of 28 he was known for winning the major theatre competition of the year and getting himself established as a real player in a theatre arena. However, he produced over 100 plays in his life, only few of these have survived. Sophocles changed the status quo of the Greek theatre. One of the biggest changes he accomplished was popularizing single, free standing plays rather than those long "old-fashioned" trilogies. He made a difference in styles and techniques between these three playwrights as well.
Interesting to notice was, to see the rivalry in  between Sophocles and Euripides. They certainly had a great respect for each other, however, their understanding and approaches to drama were radically different. Sophocles was the more conservative one. He validated mythic traditions, gods and heroes together with his works. He did like the logical plots in his stories.
One of Sophocles's greatest stories was play Electra, which was based on the famous Orestes myth. To demonstrate it more briefly this story tells about a young woman, Electra, which is waiting for her brother Orestes to arrive in order to help him avenge their's father's death by killing their mother Clymnestra and her new husband that helped to murder their father.

Another interesting thought is to see that all three of those famous playwrights of the Ancient Greece wrote a play that was dealing with the same iconic myth in a fairly diverse way. Aeschylus featuring a story of The Libation Bearers. Aeschylus's primary concern was a moral implications of a murder in one's own family. In the end Orestes is pursuit for matricide. In Euripides' Electra, where Orestes and Electra are not getting off scot-free, They have to make up for killing their mother. And than Sophocles, which has another interpretation. He choses Electra to be the main  character, unlike Euripides and Sophocles was not as concerned with morality and ethics as Aeschylus. However, it depends on the reader. Some of the critics believe that he was as concerned as Aeschylus with the moral implications and others state that a murder in this context was according to Sophocles noble and just thing to do.