January 31st (1891) was a Saturday. 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, 1891
» History of Portugal (1834–1910) or History of Portugal: The first attempt at a Portuguese republicanism called republican revolution breaks out in the northern city of Porto.