The Praetorians were disbanded in 312 [1], while the Janissaries were established about one thousand years later, in the early 1300s. By that time the Roman cul

The Praetorians were disbanded in 312 [1], while the Janissaries were established about one thousand years later, in the early 1300s. By that time the Roman culture of the early empire had transformed into the predominantly Greek culture of the Byzantines. While undoubtedly there exist many uninterrupted lines of cultural transmission from the 300s to the 1300s, I'd need to see some historical evidence of any influence the Praetorians had on the Ottoman sultans; in fact, if Murad knew about them, he may well have not created the institution of the Janissaries. I find it much more likely that there are many flavors of "natural" power structures/dynamics that emerge in societies, dependent on many factors, an important one being the current state of technology (for example, speed of communications). The organization of Roman and Ottoman society and government, although separated by a millennium of time, were close enough that a similar political/power dynamic developed. It's just a pattern that plays out over centuries (~300 years for the Praetorians, ~500 years for the Janissaries). The originator of the scheme cannot see hundreds of years into the future when everything goes haywire. [1] https://en.wikipedia.org/wiki/Praetorian_Guard#Dissolution https://en.wikipedia.org/wiki/Praetorian_Guard#Dissolution [2] https://en.wikipedia.org/wiki/Janissaries#Origins https://en.wikipedia.org/wiki/Janissaries#Origins