This article was originally published on mentalfloss.com as The Great Smog Descended on London More Than 70 Years Ago—And its Cause Took Almost As Long to Discover.

Nearly 70 years ago, Maurice Hilleman, an expert in influenza, also worried about finding eggs. Hilleman, however, needed eggs not for his breakfast, but to make the vaccines that were key to ...

Feb. 15, 1985 The Vail Town Council was investigating the feasibility of buying a controlling interest in Vail Associates, ...

The inky black upper atmosphere was less busy 68 years ago, when a few young scientists ... and eventually took the lead in the race for space. Almost 70 later, satellites are part of everyday ...

In fact, New York City schools have even been called some of the most segregated school districts in the nation, particularly ...

Woolson would turn 108 on Feb. 11, 1955, and Frances Ann, daughter of Mr. and Mrs. John Kobus, Woolson's son-in-law and daughter, would turn 5 the following week.

Maurice Stokes entered the National Basketball Association 70 years ago, in 1955, when the relatively few Black players were ...

But this wasn’t the mass expulsion plan crafted by President Donald Trump. This purge started 70 years ago, under another Republican president: Dwight D. Eisenhower. In 1954, he unleashed a ...

The teacher’s desk was on the south side facing north, if my memory is correct. It was about 70 years ago that Mom and Dad got both my brother and I dressed up, drove the 4 miles to District 2 ...