The Bayuda Desert in central Sudan is one of the least explored regions of the country. Over the past six years, however, a team of Polish archaeologists has conducted a comprehensive investigation of the area and identified over 1,200 archaeological sites dating from the Paleolithic period through the Middle Ages. According to Science in Poland, the researchers then excavated 33 cemeteries and 55 settlements. The oldest sites examined were associated with the Oldowan culture, the earliest known producers of stone tools, but perhaps the most significant discovery was the presence of a dried-up salt lake bed near Jebel El-Muwelha. The...