The Persians by Aeschylus

The Persians takes place in Susa, which at the time was one of the capitals of the Persian Empire, and opens with a chorus of old men of Susa, who are soon joined by the Queen Mother, Atossa, as they await news of her son King Xerxes' expedition against the Greeks. Expressing her anxiety and unease, Atossa narrates what is probably the first dream sequence in European theatre.