 Writing in Sanskrit (Epigraphical Hybrid Sanskrit, EHS) appears in the 1st to 4th centuries CE.Indian epigraphy becomes more widespread over the 1st millennium, engraved on the faces of cliffs, on pillars, on tablets of stone, drawn in caves and on rocks, some gouged into the bedrock.Later they were also inscribed on palm leaves, coins, Indian copper plate inscriptions, and on temple walls.