Early Earth Life History - Chapter 14
The image above demonstrates the famous and important Miller-Urey experiment held in 1958 and reproduced many times since. This experiment demonstrated the process of Abiotic Synthesis of Organic Compounds. This idea was originally proposed by Alexander Oparin in 1924, but was considered to be an unlikely process due to the pre existing expectation that Organic molecules could only be preduced by living things. This experiment conclusively showed that Organic Compounds of many types could form spontaneously from basic matter and in conditions similar to those on the Early Earth.
This experiment catalyzed the modern investigation and understanding of how life could have originated on Earth. Chapter 14 explores the basic pattern of Evolution throughout the 4.5+ Billion years of our history. That includes fossilization, origins of different forms of life throughout the 4 Eras of Earth history, and the transitions that occurred supporting evolution of Prokaryotes, Eukaryotes, and finally Multi-Cellular Organisms.
Evolution and Change throughout History - Chapter 15