In 2004, Botox was approved for excess sweating (hyperhidrosis), and in 2010, Botox was approved for the treatment of migraines. A common misconception is that Botox actually paralyzes the muscles in the face. Although, this can happen with extreme amounts of Botox, most physicians strive to inject just the amount that allows the patient to have some limited activity but not so much that they have overactivity of the areas.
Aeschylus Contributions to Dramaâ¢Aeschylus introduced the second actor (hypocrites) to the stageâ¢thus, he was the inventor of dialogue in the conventional sense of the word, i.e. between actors (vs. actor and chorus)â¢later, the principal actor came to be called the protagonist (âfirst contenderâ).
The first plays were performed with just one actor (called a protagonist) and a chorus of people who helped him to tell the story. However, throughout the 5th century BC playwrights continued to innovate. The playwright Aeschylus added a second speaking role, called the antagonist, and reduced the chorus from 50 to 12. His play 'The Persians', first performed in 472 BC, is the oldest surviving of all Greek plays. His pupil, Sophocles went on to add a third actor, while Euripides added both a prologue, introducing the subject of the play, and the deus ex machina, a divine figure who wrapped up any loose ends at the close.