Venerian Age

The Venerian Age is the vast period of human history on Venus: a new beginning forced by the decline of humanity’s homeworld, followed by successive rises and contractions in human life and culture. Though the human type became more biologically constant than it had been on Earth, life on Venus remained culturally varied, and the age’s long history ultimately ended with humanity uprooted once again.

Definition and Historical Span

The Venerian Age followed the Terrestrial Age and lasted somewhat longer than humanity’s entire career on Earth, from its earliest human ancestors to the final evacuation of its native planet. The book treats the span as too extensive for a full chronicle: even an account as compressed as the preceding history would require another volume. Its outline instead suggests a sequence of uneven recovery, flourishing, decline, and renewed life.

The age also marks a shift in the conditions of human development. On Venus the human biological type was more constant than it had been on Earth, but cultural life was scarcely less varied. The contrast is important: relative biological stability did not produce a single, continuous civilization or a uniform human experience.

The Move from Earth to Venus

The migration was driven by a worsening crisis on Earth. The Moon had grown so large that it periodically turned day into night and night into a ghastly day; immense tides and severe weather had already damaged civilization and reduced the planet’s habitability. Humanity left reluctantly. The evacuation took several centuries and carried the remaining human population to Venus, along with representatives of many other organisms and the most valued cultural inheritances.

Venus had been prepared as a new home, but it could not be made into another Earth. Its land was extremely limited, and the plan for settlement relied on extensive changes to the planet’s living environment. Plants derived from terrestrial stock were bred for Venerian conditions. Because the islands could not provide enough room, specially designed marine plants covered broad areas of ocean, forming immense floating expanses of vegetation. On the less torrid islands, habitable pylons rose among vegetation planted across the available ground.

The planet’s capacity set strict limits on human numbers. No more than one hundred million people, it was estimated, could live there tolerably, so the population had to be reduced to about one hundredth its former size. The policy required births to remain far below deaths, making demographic decline part of the planned migration rather than an accidental consequence. The smaller society would also be mentally poorer in a social sense: individuals who had been enriched by a complex and diverse terrestrial community would have a much narrower human environment around them.

Settlement and Early Hazards

The first settlers understood that life on Venus would be difficult despite their preparations. A tiny land surface and an almost unendurable climate were compounded by the sharp contrast between the prolonged day and night. The resulting conditions included extreme storms, heavy rain, electrical disturbances, and fog. Oxygen was only just sufficient for breathing, while hydrogen released during the process of electrolysis was not always expelled from the atmosphere. When it mixed with the air, it could form an explosive mixture and produce vast atmospheric flashes.

These recurring atmospheric disasters destroyed buildings and inhabitants on many islands and further depleted the oxygen supply. Increasing vegetation gradually changed what was possible: in time, it made it possible to end the dangerous electrolysis process. The beginning of settlement was therefore neither a simple refuge nor an immediate recovery. Humanity had to take root in an environment that repeatedly threatened the physical foundations of its new home.

Cultural Cycles and the End of the Age

The history of humanity on Venus is presented as a succession of cultural seasons rather than as a steady ascent. After being transplanted, humanity at first withered almost to the root, then slowly readjusted and gained strength. Many civilizations and cultures followed, with long periods of diminished vitality between their successive efflorescences. The account describes this recurrent pattern as a feature of the age, while emphasizing that the Venerian human type was comparatively stable.

Eventually, humanity achieved what the historical metaphor calls an evergreen constitution: recurrent declines no longer defeated continuous cultural flourishing. But that durable phase was not the end of movement. By the close of the Venerian Age, humanity was once again uprooted and cast onto another world. In the book’s larger chronology, the Terrestrial and Venerian ages lie behind the approaching Neptunian Age. Venus thus occupies both a distinct historical span and a central transitional place in the much longer account of human history.