Emma Morano is an Italian supercentenarian who is, at the age of 116 years, 169 days, the world's oldest living person, and the last verified living person to have been born in the 1800s. Born on Nov. 29, 1899, Morano is believed to be the last person living born in the 19th century.
The coral reefs existing today began growing as early as 50 million years ago. Most established coral reefs are between 5,000 and 10,000 years old. Although size can be a good indicator of the age of a coral reef, it is not a certain indicator.he coral reefs existing today began growing as early as 50 million years ago. Most established coral reefs are between 5,000 and 10,000 years old. Although size can be a good indicator of the age of a coral reef, it is not a certain indicator.
The following is a list of the worldâs ten largest coral reefs arranged by their length. Note that the last three reefs are listed by their area. The Great Barrier Reef, however, is the largest reef in the world based on both area (134,363 square miles or 348,000 sq km) and length. 1) Great Barrier Reef. Length: 1,553 miles (2,500 km) Location: The Coral Sea near Australia. 2) Red Sea Coral Reef.