23 April

According to Benny Summerfield's diary, 23 April was the date of an evacuation of Greece, presumably during the Second World War. (PROSE: Just War)

In 2040, Imogen Quaye telepathically induced her aunt to commit suicide. (PROSE: Artificial Intelligence)

In 2978, a peace treaty was signed ending the war between humans and the Omwanar. (PROSE: Making History)