Firstly I'm here for reference about books about Diadochi period. But I have a couple of conditions:
newer author, that mean publication have less then 20 y
objective , not Old Greek propaganda making them always good boys while others are barbarins
supported by as much as posible facts ofc
English language
Secondly , I would like to know from where did Old Slavs came before they settled down is east Europe/baltic/Ukraine and then divided in three groups and pretty much form state in which they live today.(if this question is unclearm coz English is not my native language, plz ask for clarification)