One of the earliest findings of settlement in the Sarajevo area is that of the Neolithic Butmir culture. The discoveries at Butmir were made on the grounds of the modern-day Sarajevo suburb Ilidža in 1893 by Austro-Hungarian authorities during the construction of an agricultural school. The area's richness in flint was attractive to Neolithic humans, and the settlement flourished. The settlement developed unique ceramics and pottery designs, which characterize the Butmir people as a unique culture, as described at the International Congress of Archaeologists and Anthropologists meeting in Sarajevo in 1894.