October (Roman month) October (Roman month) October (from Latin "octo", "eight") or mensis October was the eighth of ten months on the oldest Roman calendar. It had 31 days. October followed September (from "septem", "seven") and preceded November ("novem", "nine"). After the calendar reform that resulted in a 12-month year, October became the tenth month, but retained its numerical name, as did the other months from September through December. Some of the observances in October marked the close of the season for military campaigning and farming, which commenced in March ("Martius", "Mars' month"). October was under the guardianship "(tutela)" of Mars. The Romans
Ardian (given name) in Bosnia and Herzegovina situated in the wider Neretva valley region (the original homeland of ancient Illyrian people of "Ardiaei") called Čapljina and its name derives from "čaplja", which in former Serbo-Croatian language (nowadays divided into Bosnian/Croatian/Montenegrin and Serbian) precisely means 'heron'. The Latin word for heron is "ardea", a word that bears striking similarity with the name of "Ardiaei", and it might possibly be its cognate. This theory opens up many possibilities for the interpretation of the original homeland of the Ardiaei and the etymology of their name. For example, heron might have had totemic pagan value among local