2/2 The first made the carriage body reversible. The second added a stop to limit rotation.
Not the birth of the stroller, but a clever usability and safety improvement.
2/2 It led to the Mackintosh raincoat, but early versions smelled, stiffened in cold and turned sticky in heat.
Only vulcanisation in the 1840s made rubberised materials far more stable.
A valuable invention does not always begin as a perfect product.
2/2 A product first served at a pharmacy counter had begun its life as one of the world’s best-known brands.
1/2 On this day in 1903, Caleb Bradham registered US Trademark No. 40,619 for “Pepsi-Cola”.
It was not yet described as a soft drink, but as “flavoring syrup for soda water”.
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