Marine archaeology is the study of human history and prehistory through the exploration of underwater sites. This field focuses on shipwrecks, submerged cities, and artifacts found in oceans, rivers, and lakes. By examining these sites, marine archaeologists can learn about past cultures, trade routes, and maritime practices. The tools and techniques used in marine archaeology include underwater excavation, remote sensing, and diving. Notable discoveries, such as the Titanic and ancient Roman shipwrecks, have provided valuable insights into historical events and technologies. This discipline combines elements of archaeology, history, and oceanography to uncover the mysteries of our maritime past.