Quantitative Economic History is a field that combines economic theory and historical data to analyze past economic events and trends. It uses statistical methods to quantify relationships between economic variables, such as GDP, inflation, and employment, allowing researchers to understand how economies have evolved over time. This discipline often involves the use of large datasets, including census data, trade records, and financial documents, to create models that explain historical economic phenomena. By applying quantitative techniques, historians can draw conclusions about the impact of policies, technological changes, and social factors on economic development throughout history.