Greek Theater originated in ancient Greece around the 6th century BCE and was a vital part of their culture. It began as a festival honoring the god Dionysus and evolved into a sophisticated art form featuring tragedies and comedies performed in large open-air amphitheaters. The performances were characterized by their use of masks, elaborate costumes, and a chorus that provided commentary on the action. Notable playwrights like Sophocles, Euripides, and Aristophanes contributed significantly to this genre, influencing modern theater and storytelling techniques that are still relevant today.