Researchers investigating how the first writing arose identified the motifs on preliterate "cylinder seals" used in the trade of agricultural products and textiles.

Most Indologists think it's “logo-syllabic” script like Sumerian cuneiform or Mayan glyphs ... unlike any other ancient scripts; while the proto-Elamites appear to have borrowed the idea ...

For instance, the Sumerian script used an arrow symbol to signify the concept of ... gemstones and fish are coined from the proto-Dravidian root word “min”, which means shining, polishing, etc. Q Do ...