April 11, 1954, a Sunday, was the most boring day in the 20th century.
This interesting non-interesting fact was uncovered by True Knowledge, a company in Cambridge, England that stores and processes factoids — bits of information — about people places, events, businesses. It can answer questions in an intelligent way.
On April 11, 1954, nobody significant died and no major events too place. The only person born who might be considered notable was Abdullah Atalar, a Turkish academic. No other day in the 20th century had less happening.