What is the latitude and longitude in the traditional sense of ancient China? It's like the difference between the solar calendar and the lunar calendar.

There is no obvious difference between latitude and longitude in the traditional sense of ancient China, just like the solar calendar and the lunar calendar. In ancient China, azimuth and distance were mainly used for geographical mapping, such as geographical position was measured and expressed by four directions and mileage.

In ancient times, people's understanding of geographical location was mainly described by landmarks such as mountains, rivers, roads, cities and landforms. , such as Shan Hai Jing, Zhu and other ancient books. In addition, a measuring instrument called "theodolite" appeared in the Ming and Qing Dynasties, which can measure the distance and direction between any two points on the earth, but it has not become the standard representation of geographical position like the modern latitude and longitude system.

Until modern times, with the introduction of western science and technology and the progress of geographic measurement technology, latitude and longitude became the international general geographical position representation method, and was gradually accepted and adopted by China. Today, our usual latitude and longitude system is based on the longitude of Greenwich Observatory, which divides the earth's surface into latitude and longitude grids, and expresses the latitude and longitude of geographical locations in degrees, minutes, seconds and other units.