On this day... October 31:

On this day...

October 31:  Halloween; Samhain begins (Northern Hemisphere);Beltane begins (Southern Hemisphere); Reformation Day(Protestantism) 475 – Romulus Augustulus took the throne as the last ruling emperor of the Western Roman Empire. 1517 – According to traditional accounts, Martin Luther (pictured) first posted his Ninety-Five Theses onto the door of the Castle Church inWittenberg, present-day Germany, marking the beginning of theProtestant Reformation. 1822 – Emperor Agustín de Iturbide of the First Mexican Empiredissolved the Mexican Congress and replaced it with a military junta answerable only to him. 1984 – Indian Prime Minister Indira Gandhi was assassinated by two of her own Sikh bodyguards, sparking anti-Sikh riotsthroughout the country. 1999 – All 217 people on board EgyptAir Flight 990 were killed when the aircraft suddenly plummeted into the Atlantic Ocean off the coast of Nantucket, Massachusetts, United States.