Nero began his reign as Roman Emperor at the age of 16, as his predecessor Claudius died from suspicious circumstances.
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Charles Messier discovered the Whirlpool Galaxy.
115,000-year-old human bones found in Poland turned out to be from a Neanderthal child who was eaten by a giant bird.
The Safety Hood, which would later become the gas mask, was patented by Garrett Morgan.
Microsoft purchased Activision Blizzard in a record-breaking $69 billion takeover.
Cellular mobile phone service was made available to the American public for the first time.