History of the scaffolding metaphor

Interesting paper "The early history of the scaffolding metaphor: Bernstein, Luria, Vygotsky, and before", covers a lot about the historical evolution of modern conception of scaffolding metaphor.

https://twitter.com/johnywrites/status/1573275978545397762?s=20&t=rPn70LDrIQH2-PbPg_PvXA