What drafting media types were used in the past?

In the past, drafters used media such as vellum (finely prepared animal skin), paper, tracing paper, mylar (a type of polyester film), and drafting film for creating technical drawings. These media types varied in terms of durability, transparency, and ease of erasing and editing, influencing the drafting process. With advancements in technology, most drafting is now done digitally.