- The Australian Parliament passes Prime Minister Hughes’ Military Service Referendum Bill. The Bill,first proposed on 13 September, is passed on its third reading after a session lasting 26½ hours. The Bill is agreed to by 17 votes to 9.
- Twelve German airships conduct a raid on London and the English east coast. 40 people are killed and 130 injured, most of whom are civilians. L-32 and L-33 are brought down in Essex by gunfire