I'll start by saying that I don't care what you use to build your bows. I just love the art and the community.
OK, there has been a lot of talk about what is primitive and what is not. Lets start with "Glue". The majority of bows built and displayed here are made with one of 3 types of glue. Hide glue, Epoxy, and PVAc (Titebond).
Hide glue has been made and used for a good long time. It IS primitive.
Epoxy. Epoxy was first commercially manufactured in 1927, not exactly primitive, but Elmers White glue wasn't commercially available until 1947.
PVAc. Polyvinyl Aceatae was discovered in 1912. It is also used to seal cheese. Super glue is used, but I don't think it is a main component of building a bow.
Lets move on to tools. This could take awhile so I will stick to what I see a lot of bowyers on PA use. Band saw, Spoke shave, Draw Knife, Card Scraper, Hatchet, Axe, splitting wedges (metal), Hand Plane, Chain saw.
Band saws have been around for a long time. The first patent was applied for in 1809. The first welded band saw blade was patented in 1846 (by a woman). The first American patent was 1836.
Spoke Shave. Spoke shaves have been around since about 1660. New ones are garbage in my novice opinion.
Draw Knife. The draw knife has been around for a long time as well. A set of shipwrights tools were found from 100 AD with one.
I really can't find a whole lot of history on Card Scrapers (Cabinet Scrapers). A guy wrote about them in 1826, but they have been used for a very long time.
Hatchets and axes have been used for a long time as well.
Metal Splitting wedges have been used since the Egyptians used bronze wedges to split stone.
Hand Planes have also been used for a good long time. Like for 2000 years.
Chain Saw. The chain saw was invented in 1783, but was a medical instrument. Hand held chain saws were invented in 1925. The first American made gas powered chain saws were made in 1947.
Materials are what they are. We use wood, Bone, Horn, Antler, Leather, Sinew and hoof.
Here is the Challenge (finally, I know). I want to see a bow (hopefully a lot) made with all hand tools. I have seen quite a few, I even made my first with all hand tools. I want to see one built from materials and tools that pre date 1900 (modern versions are fine, and from materials from your area (if sinew is available you can use a different kind etc.). I will be building a sinew backed Utah Juniper (juniperus osteosperma). I hand cut the stave with a bow saw. If anyone wants to chime in on a deadline please feel free. I need a bit of pushing.
I hope to see some awesome Primitive bows.