Who was banu abbas?

The Banu Abbas, or Abbasid dynasty, was a significant Islamic dynasty that came to power after overthrowing the Umayyad Caliphate in 750 CE. They claimed descent from Abbas ibn Abd al-Muttalib, the uncle of the Prophet Muhammad. The Abbasids established their capital in Baghdad, which became a center of culture, science, and trade during the Islamic Golden Age. Their rule marked a shift towards a more inclusive and cosmopolitan Islamic society, though it eventually saw decline due to internal strife and external pressures.