Claudius meanwhile, who knew nothing about his wife, and was busy with his functions as censor, published edicts severely rebuking the lawlessness of the people in the theatre, when they insulted Caius Pomponius, an ex-consul, who furnished verses for the stage, and certain ladies of rank. He introduced too a law restraining the cruel greed of the usurers, and forbidding them to lend at interest sums repayable on a father's death. He also conveyed by an aqueduct into Rome the waters which flow from the hills of Simbrua. And he likewise invented and published for use some new letters, having discovered, as he said, that even the Greek alphabet had not been completed at once.