Which Greek Stoic philosopher mentioned two of the four subgroups of the Helvetians that failed in their migration attempt to Gaul?
Posidonius Posidonius (Greek: Ποσειδώνιος, "Poseidonios", meaning "of Poseidon") "of Apameia" (ὁ Ἀπαμεύς) or "of Rhodes" (ὁ Ῥόδιος) (c. 135 BCE – c. 51 BCE), was a Greek Stoic philosopher, politician, astronomer, geographer, historian and teacher native to Apamea, Syria.
Spali The Spali (Latin: "Spalaei, Palaei" ) was a tribe mentioned by Pliny (23–79) and Jordanes ( 551), located in the region south of Kiev. They are believed by some (Tadeusz Sulimirski) to have been a branch of the Roxolani. Sulimirski attributed Sarmatian archaeology on the mid-Dnieper to the tribe, supported by the Sarmatians' downfall after the Gothic invasion in 200 AD. Another connection is made to the "Royal Sarmatians" (mentioned by Strabo as a Scythian tribe, also called "Ourgoi"), supported by Indo-Parthian royal names "Spalirisos", "Spalyris", "Spalahora", and the Slavic word "ispolin", "spolin" ("giant"), assumed to date back to when the Slavs were ruled by the Spali.