KnowraProto-writingLinked fromLinked fromThe 3 pages that link to Proto-writing, each with the reason it gives.All 3Narrower topic 2Compared with 1Indus scriptCompared with: Some researchers question whether Indus signs encode language rather than nonlinguistic information.History of writingNarrower topic: It distinguishes precursors such as tokens and pictorial records from full writing.Jemdet Nasr periodNarrower topic: The boundary between accounting notation and writing is central to interpreting its tablets.