Roman calendar originally was determined by the cycles of the sun and moon.
Hello and welcome to....Mo-Vember* aka November, also know as Ho-vember, see also month which dutifully follows Rock-tober. Yes its a free for all. Corporations, practical jokers and radio funny men alike have taken to the re-naming of our lunar calendar like a fat kid to a cake.
I have to admit its a pretty delicious notion - I mean why maintain the ancient Roman Calendar anyway - its not like Julias Ceaser and his merrier orgiastic Empire were all that special right? I mean sure they sorted transportation, sanitation, entertainment and alike, but the Calendar who needs it. We work on our own time in the 21st Century.
*Mo-vember: a month dedicated the growing of a "tache" so many choices.
I'll miss you rock_tober
