Archaeology is the study of human activity in the past, primarily through the recovery and analysis of the material culture and environmental data that they have left behind, which includes artifacts, architecture, biofacts (also known as eco-facts) and cultural landscapes (the archaeological record). The development of the field of archaeology has it roots with history and with those who were interested in the past, such as kings and queens who wanted to show past glories of their respective nations. In the 6th century BC, Nabonidus of the Neo-Babylonian Empire excavated, surveyed and restored sites built more than a millennium earlier under Naram-sin of Akkad. The 5th-century-BCE Greek historian Herodotus was the first scholar to systematically study the past and also an early examiner of artifacts. In Medieval India, the study of past was recorded. In the Song Empire (960–1279) of Imperial China, Chinese scholar-officials unearthed, studied, and cataloged ancient artifacts, a native practice that continued into the Qing dynasty (1644–1912) before adoption of Western methods. The 15th and 16th centuries saw the rise of antiquarians in Renaissance Europe such as Flavio Biondo 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. The OED first cites "archaeologist" from 1824; this soon took over as the usual term for one major branch of antiquarian activity. "Archaeology", from 1607 onwards, initially meant what we would call "ancient history" generally, with the narrower modern sense first seen in 1837. Beginnings Khaemweset, a son of ancient Egyptian Pharaoh Ramesses II, was known for his keen interest in identifying and restoring monuments of Egypt's past, such as Djoser's step pyramid. This pyramid, having been built in the 27th century BC, predated Khaemweset by approximately 1,400 years. Due to his activities, he is sometimes nicknamed "the first Egyptologist". In Ancient Mesopotamia, a foundation deposit of the Akkadian Empire ruler Naram-Sin (ruled circa 2200 BCE) was discovered and analysed by king Nabonidus, circa 550 BCE, who is thus known as the first archaeologist. Not only did he lead the first excavations which were to find the foundation deposits of the temples of Šamaš