Historical geology is a branch of geology that focuses on the study of Earth's history and the processes that have shaped the planet over millions of years. This field of study seeks to understand the evolution of Earth's landforms, rock formations, and fossils, as well as the relationship between geological events and changes in Earth's climate and environment. Historical geologists use a variety of methods, including the analysis of rock layers and fossils, to reconstruct the history of the Earth and uncover evidence of past geological events. By studying the Earth's history, historical geologists can gain insights into how the planet has changed over time and better understand the processes that continue to shape our planet today.