January 31st (1918) was a Thursday. It's the 30th day of the year (31st in leap years) in the Gregorian calendar. There are 335 days left to the end of the year.
Historical Events for 31st January, 1918
» A Battle of May Island named series of accidental collisions on a misty Scottish night leads to the loss of two Royal Navy submarines with over a hundred lives, and damage to another five British warships.