Archaeologists learn about how people lived in the past from the remains they left behind. Over time, architectural ruins and artifacts are often buried, so archaeologists must dig to find them. This dig is called an "excavation," and it's one of the most important steps in archaeology. An excavation is a slow, carefully planned, and well-organized process. When archaeologists uncover new artifacts, they're uncovering pieces of history.

Image credits: main image, courtesy of Charles Spencer; Chuck Spencer: courtesy of AMNH.