The appearance of comets is thought of as a bad omen in many cultures around the world.
The appearance of a comet is often seen as a sign of destructive and tragic events, which will come to pass in the near future.
In an ancient Chinese book, written in 300 B.C., it is explained how the arrival of comets has caused various disasters, such as wars, the dethronement of powerful leaders, mysterious whale deaths and a lack of vital ingredients, such as salt, fish and rice.
According to the story, the Aztec tribe willingly refused to resist Cortez the conqueror in 1519, because they witnessed a comet that foreshadowed the end of his rulership.
One of the most evil omens is considered to be the arrival of Halley's Comet.
It is believed that because of it, England was taken over by William the Conqueror.
In the year of the arrival of Halley's Comet, Genghis Khan attacked the western world.
In many religions, the idea that the end of the world and the Last Judgment would be predicted by a comet's appearance is spreading.
There are 1909 instances in the world of people who have felt severe panic during the presence of comets and there are anti-comet pills prescribed especially for them.
In the written documents of astronomers, there are ancient astronomical events mentioned, which have triggered cataclysms on Earth.
Chinese data reports 10 deaths that had occurred during a meteor shower in 1994.
Historical chronicles mention that on the 14th of September 1511, during a meteor shower in Cremona, Italy, a monk, a few birds and sheep mysteriously died.
An unusual event occured on August 20, 1907, when an English ship arrived in Boston.
The ship had been located a few kilometers off the coast of Newfoundland, when a ball of fire emerged in the sky, similar to a rocket.
The fireball passed by the mast and caused huge waves but the ship remained unharmed.
This reported event was published in the New York Times.
Many theories support the idea that if an asteroid were to hit the surface of the Earth, cataclysmic changes would result and temperatures would rise significantly.