Now my thesis, as you may recall
Is events, they are shared by dates all
But it may not be so
A computer did show
On this date, naught of interest did fall

Year: 1954
(Lack of) Event: The True Knowledge (now Evi) Answer Engine objectively (?) determined in November 2010 that this was the single most boring date in the entire 20th century
Learn more: http://www.telegraph.co.uk/science/science-news/8160622/Computer-identifies-the-most-boring-day-in-history.html