The Longquan Code: A 17th-Century Timber Measurement Revolution in Southwest Jiangxi
Historical Necessity: The Birth of the “Longquan Code” In the deep mountains of Southwest Jiangxi during the 17th century, a technological revolution in timber measurement was quietly taking place. Early timber trading was extremely imprecise, initially relying on the “pile estimation” method, where prices were negotiated based on a visual assessment of a timber pile. This often led to disputes over lengths and quality [1]. Later, a weight-based system using scales was introduced, but it proved inefficient due to varying moisture levels in the wood and the sheer difficulty of weighing massive logs [1]. ...