The planet is covered by thick ice sheets at the poles, which grow during the long winters and recede during the short summers. There are a few landmasses in the middle, covered by mountains, tundras, and forests of massive trees reminiscent of terrestrial redwoods. The water oceans cover most of the planet and are extremely cold. They're cold enough to instantly give a normal human hypothermia within minutes. Some icy rivers also flow through the continents.
The life on Frigus consists mostly of plants with a few animals. The plants consist of mostly massive redwood trees, with some ferns, mosses, and bushes. The animal life consists of a species similar to wolves, along with their prey; a deer-like species. There are also smaller, mouse like creatures that roam the forest floors.
The atmosphere of Frigus before the arrival of human colonists consisted almost entirely carbon dioxide, with trace amounts of oxygen and a extremely small amount of sulfur dioxide. Due to its cold climate, the planet was named Frigius, which in Ancient Latin means cold. Average temperatures on the surface range from -15 °C in the long winters and 2 °C in the short summers. The unusual seasons are due to it's orbit, which is slightly elliptical. This gives the planer longer, colder winters and shorter, milder summers. The weather is fair most of the time, but storms are common near the equator were the temperatures can reach up to 10 degrees, causing a mixture of low pressure air from the equator to mix with the low pressure air of the temperate and polar zones, causing storms near the equator. The storms are mostly old hurricanes. Instead of heavy flooding, rain and wind, the cold hurricanes create strong blizzards, ice storms, and freezing temperatures. Rain is rare, but it does occur near the equator. Snow is very common in the temperate and polar zones.
~12 billion years BCE: Along with most of the spiral galaxies in the universe, the Nent Galaxy, where Frigus is located, formed around this point during the early days of the universe.
4.631 billion years BCE: A cloud of dust started to collapse into a star due to a nearby supernova. The star Vamana was formed, along with its accretion disk.
4.421 billion years BCE: During the formation of the Vamana System, a large clump of rock from the accretion disk formed into the infant planet Frigus, along with some of the other planets in the Vamana System. The planet, along with almost all planets in the universe, had a hard and fiery infancy, with impacts being common.
4.209 billion years BCE: There used to be more than 11 planets in the Vamana system during it's early days. Around this time, the newly formed planet Brevis grazed the Frigius' surface. The gravitational strain caused Bevis to be mostly destroyed, formed into a ring that started to form around the planet. All that was left from Brevis was its strong iron core, that eventually formed together with the ring material to become Petram, an S-Class moon very similar to Luna.
4.083 billion years BCE: Around this time, impacts between the rocky bodies began to become a lot less common. This gave the planets the opportunity cool down. The thick water clouds that had covered the planet for millions of years began to rain down, forming the world's first oceans. Ice also started to form around it's poles. The atmosphere was mostly nitrogen during this period, with a third of it being carbon dioxide with some traces of oxygen.
3.723 billion years BCE: ,Around this time, carbon atoms began to form together into complex sugars and proteins. The first unicellular life forms began to form in the depths near hydrothermal vents. The unicellular life evolved, forming very small multicellular beings.
3.514 billion years BCE: As with life on Earth, the oceanic life forms began to migrate upward, eventually making their way onto the surface. At that time, the surface was a frozen wasteland with the highest temperatures being -147 °C. Meanwhile, the life forms that had initially evolved near the hydrothermal vents began filling the atmosphere with CO2 gas. The CO2 started to build up in the atmosphere. This began to form a layer of greenhouse gas, causing rapid warmth of the surface. Even with this heating up of the surface, the planet was still only -52 °C. The surface of Frius began to consist mostly of ice flats and glaciers. The marine life began to evolve strong exoskeletons and began to evolve to become warm-blooded. At this time the first plant life formed: a blue-green algae. The algae produced carbon dioxide at a faster more efficient rate. The temperature rose to -28 °C. Marine life slowly began to crawl up onto the warming surface.
2.983 billion years BCE: At this point in Frigius' history, its atmosphere had become 99 percent carbon dioxide, and the greenhouse gasses had helped to warm the planet to a mild -9 °C. Many different species of marine life roamed the oceans, with pockets of plant life near the warm volcanic vents. Meanwhile ,on the surface, the terrestrial life had evolved from amphibious creatures to furry mammals better adapted to the cold conditions. Plant life grew into bushes, grass, and small trees. The surface of Frigus turned from brown to green near the equator.
2.556 billion years BCE: At this point. Frigius' active mantle layer started to create powerful volcanoes. A supervolcanic eruption during this time formed the island later known as Clade. It pumped tons of ash and sulfur dioxide into the planet's atmosphere. Large pockets of coal created from dead plants began to burn beneath the planet's surface. The temperature rose to a warm 57 °C. This caused a mass extinction event. The ice caps melted, causing massive worldwide floods on all low lying land masses. 93 percent of all life died. Most of the marine life went extinct from ocean acidification caused by the volcanoes. The only life tthat survived were the small fishes and plant life that grew near the hydrothermal vents. Eventually the volcanic activity ceased, leaving the atmosphere at 92 percent carbon dioxide, 7 percent sulfur dioxide, and 1 percent other gasses. The atmosphere began to stabilize and the temperatures dropped. The ice caps returned, and the waters receded.1.902 billion years BCE: By this time, life had begun to spread across the surface once again. Plants evolved stronger trunks that allowed them to grow tall and large, forming the ancestors of the large redwood forests that cover most of it's solid land in the modern day. A second explosion of life emerged, creating the ancestors to the modern life forms the Frigian Humans know of in the modern day4212 years CE: A probe from a colony mission discovered Frigius. A few months later a human ship travelling through the Nent galaxy arrived. The humans, a population of around 10,000, landed on the planet and settled a colony near it's largest impact crater, an inland sea called the Etiam Sea. The base expanded, and other cities spread out across the planet's landmasses. Terraforming began.
4278 years CE: After decades of terraforming, the domed cities opened to the newly formed atmosphere. The global population was now 19,000. Colonists began to spread out to the other planets of Vamana. Frigus became a large trading outpost, and merchants made profits selling the rare coats of the wolf-like, deer-like, and bear-like creatures that roamed the woods illegally on the black market.
4282 years CE: After years of being under the radar, the gangs of crooks that had been poaching the wildlife were caught and a conversation act was placed to protect the rare species of Frigus. The planet's commercial industry began to die out, and it became a prime spot for researching, and a grand university comparable to Oxford in the 20th century was constructed.