Matt: Heroin or Aspirin
The company Bayer is famous for inventing aspirin in 1898, which is arguably one of the worlds most beloved brands, and for good reason. But I was surprised to learn that just two weeks earlier, the same three guys who gave the world aspirin also created Bayers other big brand, heroin, which was marketed for about eight years as the worlds best cough medicine.
From Andrew Essex on his book about the End of Advertising. Hat tip: John Maeda.