Once Socrates said "To know, is to know that you know nothing. That is the meaning of true knowledge." Science and our knowledge about this world developed amazingly in last few centuries, but there are many, many questions yet to be answered. Our world is much strange than it looks. It is full of strange and mysterious things that we humans can't understand and explain yet. Let's read about 10 unsolved mysteries of our world.

5. Dancing Plague

Dancing Plague

In July 1518, a woman, Frau Troffea, began dancing in a street of Strasbourg. This was not just for entertainment. It was an obsession that soon, within a month, spread in the area and 400 other people of Strasbourg joined her in dancing. They danced continuously not only for days or weeks, but for months. Some of them died from heart attacks, strokes and exhaustion. No one had any idea why people were such obsessed with dance that they lost their life.

4. Lady Dais

Lady Dais

Scientist found an ancient body in China which is the most well preserved body till now. The body is around 2,000 years old and known as Lady Dais of the Han Dynasty. She died between 178 and 145 BC at the age of around 50, possibly because of a heart attack. The skin of the mummy is still soft, and her arms and legs could flex at the joints. The mummy had preserved in a mysterious liquid which scientist still can't replicate.

3. Harold Disappearance

Harold Disappearance

In December 1967, Harold Hold went down to Cheviot beach for swimming and suddenly disappeared. Since he was prime minister of Australia at that time, one of the biggest search operation of Australia started. Police, Navy, Air Force and local volunteers searched for him all around for next two days but didn't found a single trace of him. How he eventually disappeared is still a mystery.

2. Spontaneous Combustion

Spontaneous Combustion

On 15th September 1982, Jeannie Saffin eventually wrapped into flames while sitting on a chair. Her father, who was the witness of this incident, says he saw flash light came out of his eyes corner and hands. She covered into flames and didn't cried or moved even. While investigation, police found no reason of Jeannie's combustion. There was no sign of burning in the house except Jeannie's body. The cause of her death is still unknown.

1. Red Rain

Red Rain

In 2001, from July to September, heavy rain fall sporadically in Southern Indian State, Kerala. It was not an ordinary rain, but a special one. The color of rain's water was red. The clouds were spitting out blood. The Indian Government claimed it is because of airborne spores from locally prolific terrestrial alga. But a media report, published in 2006, claimed that the colored particles were extraterrestrial cells. Despite many research, it is still unknown.


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