 
 <prompt> Which place no get different levels of authority: Old Kingdom of Egypt, Nabta, or Nubia? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context: <response>: During di Neolithic Era, before desertification start, around 9500 BCE di central Sudan bin dey rich well well dey support plenty people wey dey move from where desert dey now, like Wadi el-Qa'ab. By di 5th millennium BCE, di people wey dey live for wetin dem dey call Nubia now, dey fully involved for di "agricultural revolution", dey live settled life with plants and animals wey dem don domesticate. Saharan rock art of cattle and herdsmen dey show say cattle cult dey like wetin dey Sudan and other pastoral societies for Africa today. Megaliths wey dem see for Nabta Playa na clear example of probably di world's first archaeoastronomy devices, wey dey happen before Stonehenge by about 2,000 years. Dis complexity, as dem see for Nabta Playa, and as e dey show for different levels of authority within di society there, likely form di basis for di structure of both di Neolithic society for Nabta and di Old Kingdom of Egypt. 