Chorobates is an ancient Greek term referring to a type of surveying instrument used in construction and engineering. It consists of a long, straight beam or rod that is supported at its ends, allowing for precise measurements of horizontal and vertical angles. This tool was essential for ensuring that structures were built level and aligned correctly. The chorobates played a significant role in the development of early engineering techniques, particularly in the construction of aqueducts and buildings in ancient Rome. Its design influenced later surveying instruments, contributing to advancements in fields such as architecture and civil engineering, which are crucial for modern infrastructure.