The image is a slide from a presentation about the history of the species Ebony. The slide has a white background with black text. The title of the slide is "Ebony" and it mentions that Ebony (wumu) refers to "dark and sinkable wood" or "carbonized wood". Below the title, there is a subtitle that reads "They were formed thou-sands of or even tens of thousands of years through carbonization under certain natural condition after being buried beneath ancient riverbed due to crustal movement. Normally, this process happens to those tree species such as Phoebe zhennan, Toona ciliata, and Cinnamonum camphorra, etc. Ebony has been mainly found in Sichuan Basin and the ages of unearthed samples are from 3000 to 1000 years by radioactive dating."