Economic historians study the development and impact of economic systems throughout history. They analyze data, documents, and trends to understand how economies have evolved over time, focusing on factors like trade, industry, and labor. Their work helps explain how past economic events shape current policies and practices. These historians often explore significant periods, such as the Industrial Revolution or the Great Depression, to identify patterns and lessons. By examining the interplay between economics and other fields, like politics and society, they provide valuable insights into how economic forces influence human behavior and decision-making.