In which city did Alexander fall ill before his death?

The city where Alexander the Great fell ill before his death was Babylon. His illness occurred in June 323 BCE while he was in this ancient city, which served as a significant administrative and cultural center in Mesopotamia. After expanding his empire, Alexander had plans to further develop Babylon and make it a key hub for trade and governance.

His sudden illness led to a rapid decline in health, ultimately resulting in his death at the age of 32. Babylon's historical and strategic importance showcases the empire's expansion and the significance of the city during that period. While Persepolis was also an important city in the Achaemenid Empire, it is not the site where Alexander experienced his final illness. Athens and Rome, while historically significant, were not direct locations associated with Alexander's demise. Thus, Babylon stands out as the key location in relation to his ill-fated last days.