Original: According to a later account of Aeschylus' life, as they walked on stage in the first performance of the Eumenides, the chorus of Furies were so frightening in appearance that they caused young children to faint, patriarchs to urinate, and pregnant women to go into labor.
Simplified: When they walked on stage in the first performance of the Eumenides, the chorus of Furies were so frightening in looks that they made young children faint, old men urinate, and pregnant women go into labor.