They belonged to different and even opposing factions due to geography and time.
Explanation:
A second-generation society is defined as one that emerged from a declining empire or from the borders of one and also adds different elements to the culture, religion, history, etc., due to the context.
Nubians are considered a second-generation society because they (or at least a part of them) were part of Egypt or even of a rival, the Kingdom Kush according to the time and geography, which made them take parts of both civilizations to develop their own.
1 print : engraving. The U.S. Supreme Court case Marbury v. Madison (1803) established the principle of judicial review—the power of the federal courts to declare legislative and executive acts unconstitutional. The unanimous opinion was written by Chief Justice John Marshall.