Editing Perdiccas (section)

=== Assassination ===
Following what was so far a disastrous campaign, a mutiny broke out amongst Perdiccas' soldiers, who were disheartened by his failure to make progress in Egypt.{{sfn|Heckel|2016|p=183}} Angry at his incompetence and probably colluding with Ptolemy,{{sfn|Anson|2014|p=69}} Perdiccas was murdered by his officers ([[Peithon]], [[Antigenes (general)|Antigenes]], and [[Seleucus I Nicator|Seleucus]]), probably in the summer of 320&nbsp;BC, roughly three years after he had assumed the regency.{{sfn|Anson|2014|p=59}}{{sfnm|Heckel|2016|1p=182|Nep.|2loc=18.5.1}} His officers and the rest of his army defected to [[Ptolemy I Soter|Ptolemy]].

News of Eumenes' victory at the [[Battle of the Hellespont (321 BC)|Battle of the Hellespont]] in 320&nbsp;BC where Craterus and Neoptolemus were killed, which would have instantly restored Perdiccas' authority, arrived in Egypt one day after his assassination.{{sfn|Heckel|2016|p=183. There is considerable scholarly confusion about the reports Perdiccas received about Eumenes' activity in Asia Minor from Egypt, but the claim that the news arrived too late - a day too late, is widely accepted}}{{sfn|Diod.|loc=18.37.1}} Anson notes that "if the news of Eumenes' victory over Craterus had arrived sooner, the entire history of the post-Alexander era might have been dramatically altered; Perdiccas might have emerged supreme, the successor of Alexander and the ruler of the vast Macedonian empire, with the inauguration of a  new royal family".{{sfn|Anson|2014|p=68}} What became of Alexander's signet ring that Perdiccas carried, and even whether he brought it into Egypt, is not known.{{sfn|Romm|2011|p=199}}