Back in 1518, something terrifying happened in Europe.
People suddenly started dancing in the streets…
for days.
Not for fun.
Not during a festival.
They literally couldn’t stop.
Some even died from exhaustion.
Thread 🧵
The human heart beats about 100,000 times per day.
Over an average lifetime, that's more than 2.5 billion heartbeats.
Source: American Heart Association
The first computer programmer in history was a woman.
Ada Lovelace wrote what is considered the first algorithm intended for a machine in the 1840s.
She envisioned computers long before modern computers even existed.
According to the World Health Organization (WHO), cardiovascular diseases cause approximately 17.9 million deaths annually, accounting for about 32% of all global deaths.
During the follow-up period, researchers recorded 37 cardiovascular disease events, including coronary artery disease, heart failure, and sudden cardiac death.
Scientists estimate that less than 1% of all species that have ever lived on Earth are alive today.
Most of life's history has already vanished forever.
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Some mysteries fade with time.
This one only became stranger.
And somewhere over the waters south of Australia, the final moments of Frederick Valentich remain a puzzle.
In 1978, a 20-year-old Australian pilot took off on what should have been a routine training flight.
A few hours later, he vanished.
His name was Frederick Valentich. 🧵
8/
Over the years, many theories have emerged.
Mechanical failure.Pilot disorientation.A staged disappearance.Even UFO involvement.
But none have been proven.
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A few minutes later, Frederick reported that his plane was experiencing engine problems.
His final transmissions became increasingly difficult to understand.
Then there was silence.
4/
During the conversation, he sounded confused but calm.
He described the object as metallic and said it appeared to be orbiting above him.
Air traffic controllers had no explanation.
3/
Then things got weird.
Frederick reported seeing a large aircraft with bright lights following him.
He said it was moving fast and didn't look like any plane he had ever seen.
2/
About 45 minutes into the flight, Frederick radioed air traffic control with a strange question.
He asked if there was any known aircraft flying below 5,000 feet near him.
The answer was no.
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On October 21, 1978, Frederick departed from Melbourne, Australia, flying a small Cessna 182 aircraft.
His destination was King Island, about 235 km away.
The weather was clear, and nothing seemed unusual.