 How often do Bachus vines mature and what is the significance of that timeline?
[Transcriber's Note: This etext was produced from Worlds of If Science Fiction, September 1962. "The Bogans have launched no less than four military campaigns in the last two decades. Now, perhaps, we shall see them breaking that precedent and entering into the cultural life of the Galaxy." "Breaking and entering," Retief said. "Our function is merely to bring them together. The wine crop is just about ready. Now I don't know if you're familiar with the Bacchus vines we grow...?" "Only mature every twelve years. In between, the vines don't need a lot of attention, so our time's mostly our own. We've turned all the land area we've got into parks and farms. We've got long seasons back home. Our year's about eighteen Terry months. Blue-black sky, stars visible all day. Lots of skiing, bob-sledding, ice skating; and it's the season for woodworkers. That's the music-writing season. You have the music and the surf and the bonfires and stars—we're close to the center of a globular cluster, you know...." Autumn's our harvest season. Fruit, grain, that kind of thing; getting it in doesn't take long. This is Wine Year." "Our wine crop is our big money crop," he said. But this year...." Course, I'm only twenty-eight; I can't remember but two other harvests.
 Every 12 years a vintage is held, which also serves as a cultural festival that encourage young people to procreate.
 Every 18 years a vintage is held, which is a kind of celebration of art.  Every 12 years a vintage is held, which also serves as a cultural festival that encourage young people to procreate.  Every 18 years a vintage is held, which serves as a kind of celebration of life for both young and old people.  Every 12 years a vintage is held, wherein the young people are made to harvest all the grapes.