The development of the field of archaeology has it roots with history and with those who were interested in the past, such as kings who wanted to show past glories of their respective nations. The 5th-century-BCE Greek historian Herodotus was the first scholar to systematically study the past and perhaps the first to examine artifacts. In the Song Empire (960–1279) of Imperial China, Chinese scholar-officials unearthed, studied, and cataloged ancient artifacts. The 15th and 16th centuries saw the rise of antiquarians in Renaissance Europe who were interested in the collection of artifacts. The antiquarian movement shifted into nationalism as personal collections turned into national museums. It evolved into a much more systematic discipline in the late 19th century and became a widely used tool for historical and anthropological research in the 20th century. During this time there were also significant advances in the technology used in the field.