Final answer:
Around 1650 CE, James Ussher calculated the age of Earth to be approximately 6,000 years using biblical genealogies. Later, scientific evidence in the 19th century revealed the Earth to be about 4.54 billion years old.
Step-by-step explanation:
The person who suggested the age of the Earth around 1650 CE was not directly mentioned in the provided information. However, one of the key historical figures in understanding the Earth's age was James Ussher, a 17th-century Irish Archbishop, who used biblical genealogies to calculate what he believed to be the Earth's date of creation: the night preceding October 23, 4004 BC. This would have placed the age of the Earth at approximately 6,000 years around 1650 CE. It wasn't until the 19th century that scientists like Charles Darwin, and geologists based on physical evidence, came to understand that the Earth is much older, now estimated to be about 4.54 billion years old.