Board Thread:Speculation House/@comment-26299202-20150928043323/@comment-26397825-20150928060332

If they are earth-sized and follow the same rotation number of days and the like, then it would make more sense for us to pretend they follow the Viking calendar, which was thirteen months of 28 days, which followed the moon cycle.

By that logic we should use the Viking Zodiac signs, which are really different from the Horoscope Zodiac that most of the western world uses.