The fossil record and radiocarbon dating are crucial methods used by paleontologists, archaeologists, and geologists for placing historical events and ancient species within their respective geological eras. Fossil recording uses the Law of Superposition, stating that lower layers in undisturbed rock sequences are older than upper layers. Radiocarbon dating measures the amount of carbon-14 in fossils after an organism dies to estimate a specimen’s age. The carbon-14 isotope’s mathematical rate of decline enables accurate analysis of a sample’s age. Each new fossil discovery and dating event enriches our understanding of past environments.