The German engineer Johannes Grant was called in early, but the construction of the "Cutter of the Throat," or Rumeli Hisan, restricted naval support, and a causeway of greased logs across the Galata ended supply shipments from Genoa.
This event was supposedly portended by the eruption of the Kuwae volcano, which caused a "magnificent red fire" in the sky. One source is a diary on it written by contemporary Nicolo Barbaro. The German engineer Johannes Grant was called in early, but the construction of the "Cutter of the Throat," or Rumeli Hisan, restricted naval support, and a causeway of greased logs across the Galata ended supply shipments from Genoa. The injury of Giovanni Giustiniani demoralized the defenders holding the Blachernae Wall, as did the use of the Basilic, a 27-foot long cannon which blasted at the Theodosian walls. FTP, identify this 1453 event in which Constantine XI died in battle and Mehmed II took control of the Byzantine capital.
This event was supposedly portended by the eruption of the Kuwae volcano, which caused a "magnificent red fire" in the sky.
fall of Constantinople (or siege of Constantinople or reasonable equivalents mentioning Constantinople specifically being defeated/taken)