Volumes of historical archives in China have been digitised, from which various datasets have been constructed for scholarly inquiry. Furthermore, the excavation of thousands of archaeological sites provided detailed data about prehistoric development across China's landmass. As a result, there has been remarkable progress in quantitative studies on China's past. This article reviews recent work in five theme areas to provide a background for the papers included in this special issue. These themes include state formation, Confucianism, human capital, Christian missionaries, and long‐term persistence studies. The five papers in this issue fall into these themes and are introduced where appropriate.