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The oldest compass in the world is believed to be the Han Dynasty compass, which dates back to around the 2nd century BC in China. This compass was made of lodestone and consisted of a magnetic spoon floating in a dish.
No, granite is not the oldest rock in the world. Some of the oldest rocks on Earth are found in Western Australia and are over 4 billion years old, while granite typically ranges from 300 million to 3 billion years old.
The oldest person on record is Jeanne Calment from France, who lived to be 122 years and 164 days old before passing away in 1997.
The Great Barrier Reef is approximately 500,000 years old, making it relatively young in comparison to some of the world's oldest natural wonders.
The oldest house in the world is believed to be a stone house found in Palestine, dating back to around 9,000 BC. This house is part of the site known as Jericho, one of the oldest continuously inhabited cities in the world.
As of September 2021, Kane Tanaka from Japan holds the record as the world's oldest living person. She was born on January 2, 1903, which makes her 118 years old.