Radiocarbon dating is a method used to determine the age of organic materials based on the decay of the radioactive isotope carbon-14. This technique is commonly used in archaeology and geology to date materials such as bones, wood, and artifacts. By measuring the amount of carbon-14 remaining in a sample and comparing it to the initial amount, researchers can calculate the time since the sample was last alive or in equilibrium with the atmosphere. Radiocarbon dating has revolutionized the field of historical dating and has provided valuable insights into the timeline of human history and geological processes.