I have a question that's been on my mind since I first started learning about honing and the different stones out there for us to use. AFAIK, the really fine grit hones and, of course, diamond sprays and pastes are a relatively new phenomenon. That up until a handful of years ago, even the honemeisters only went up to the Norton 8K, or maybe a coticule. A quick search of the internet shows that Belgian Blues and cotis have been mined for centuries, so they've been in existence for that long at least, even if not widely used.

So here's my question: What were razor edges like throughout history, from Ancient Greece up until the cowboys and indians? I imagine the sharpening tool was invented hand-in-hand with the sharpened tool, so shouldn't we have razor hones for as long as we've had razors? Wikipedia says early razors date back to the Bronze Age. (Looks like this one could use a few laps on some CrOx.)

So, any experts out there willing to share?