United kingdom geologist and writer of Concepts of Geology, which popularized the idea of uniformitarianism. He was among the initial researchers to postulate that the planet earth is over the age of 200 million years, that was the frequently accepted notion through the 19th hundred years. His interest for geology coincided along with his deteriorating eyesight. Charles Darwin was one of is own closest close friends but he continuing to reject the idea of evolution in each one of the initial nine editions from the Concepts. He previously nine young siblings. Another well-known geologist like Lyell was Adam Parkinson.