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TIL that Ethan Zuckerman, the man who invented pop-up ads has apologized to the world for creating one of the Internet's most hated forms of advertising.

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P1QVV TIL In 2010 all Iceland's murder victims were women.
XEK1r TIL Archaeological studies found evidence of asbestos being used since the Stone Age to strengthen pots. Many developing countries today support using asbestos as a building material. Russia is the top producer, having produced 1 million tons in 2015.
D186p Today I Learned that propane has no smell. That smell of rotting eggs associated with propane is actually ethanethiol, a “stench gas” used as an additive in odorless combustible gasses to help accidental ingesters to identify it as a danger.
OoMvX TIL Zebras are black with white stripes. It was previously believed that zebras were white animals with black stripes, since some zebras have white underbellies. Embryological evidence, however, shows that the animal's background color is black and the white stripes and bellies are additions.
dVKE TIL that a Congolese Mbuti pygmy, Ota Benga, was ‘exhibited’ at the Bronx Zoo in the monkey house as an example of “earlier stages of human evolution” in 1906.