Two anniversaries overlap each other in 2017: the 100 years of the Fatima apparitions, occurring between May 13th and October 13th 1917, and the 500 years of Luthers revolt, beginning in Wittenberg, Germany, October 31st 1517. However, there are two other much less discussed anniversaries which also fall next year: the 300 years of the official foundation of Freemasonry (London, June 24th 1717) and the 100 years of the Russian Revolution of October 26th 1917 (the Julian calendar in use in the Russian Empire: November 8th according to the Gregorian calendar).