👉 Petroglyphic refers to the ancient writing and drawings found on rocks, cliffs, and other surfaces in various parts of the world. These drawings or symbols are made by humans using tools like chisels, knives, and brushes to create images that represent different meanings or ideas. Petroglyphs were used as a form of communication between groups of people who lived together in ancient times. They may have been created for religious purposes, trade, or other uses, and they often reflect the artistic