Professor Tim Denham is one of the world's leading experts on Kuk Swamp, the most important archaeological site for understanding the origins of agriculture in New Guinea. He explains how we can use cutting-edge techniques in the study of ancient soils and tiny bits of plant to understand these fascinating past developments. We also talk about "civilization," the invention of agriculture in global context, and why it took so long to understand New Guinea as an agricultural center.

I wrote a book, and it comes out in July! You can preorder (in hard copy, e-book, or audiobook) The Verge: Reformation, Renaissance, and Forty Years that Shook the World here.

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