speedin70

I had to look up what this was, but I'm very intrigued it sounds like an interesting project. Obsidian would be great for this. Anecdotally, I found that keeping notes through a series of newspaper debates made it easy to track how an idea spread. I cross referenced this with census data for 1901 and 1911 and could roughly (only worthy of an Appendix mention) see a point at which two indiviuduals may have met and became friendly - they lived closer now and their ideas suddenly came closer to agreement.