Lead, unfortunately, is something that lingers, as was proven by scientists who used lead pollution from centuries ago to track the ups and downs of European monarchs.
Music scholars at Cambridge University studied musical manuscripts without modern notation and after years of detective work, reconstructed what they would have sounded like.
Some health experts suggest that when the world gets back to normal we should do away with the handshake. It is an effective way to spread germs, but it's also had some pretty useful functions in its long history.
The Eiffel Tower was only supposed to stand in Paris for 20 years... but experiments in "wireless telegraphy" helped convince the powers that be to keep the tower in place.
It's the birthday of Augusta Van Buren, who joined her sister Adeline for a cross-country motorcycle trip in 1916 to win support for the suffragist movement. And what a trip it was.
On this day in 1862, President Abraham Lincoln wrote to the king of Siam, now Thailand, to say thanks, but no thanks, to the king's offer of a herd of elephants.
November 18, 1883 is when railroads across the United States adopted a uniform system of time, more or less getting all of us in sync with each other. But what was time like before then?
Today is the anniversary of the day the first consumer microwave oven went on sale, back in 1955. But the microwave has roots that go back well before that, and it's at least in part a byproduct of radar technology from World War II.