The first humans to ‘settle’ Venus in 2042 were scientists who lived on small floating dirigible cities high above the clouds. They studied the planet for decades before they were forced to evacuate when terraforming began. When terraforming began, their floating cities were demolished.
Terraforming began in 2065 with orbital bombardment. Asteroids were redirected into Venusian orbit and eventually slammed in at an angle to speed up the planet's rotation. About half of these were massive ice asteroids while most of the other half were made of carbon, both of which helped introduce water vapor into Venus’ atmosphere.
At the same time, massive reflective plates were deployed in orbit to reduce the amount of sunlight reaching the planet, effectively cooling the planet’s atmosphere. At the time, an effort was made to reduce the CO2 in the atmosphere by releasing microorganisms that began to slowly scrub the CO2 from the air. Slowly the planet began to cool and speed up. As it was too much work to reverse the planet's retrograde rotation - and doing so gave so little reward - they left it, meaning that when seen from the surface, Sol rises from west to east.
As human technology advanced, so did the methods for terraforming. Instead of the mirror solution, they were able to alter the atmosphere - the main cause of Venus's high temperature - reducing the CO2 levels dramatically. By the year 2300, Venus had a barely breathable atmosphere of 0.9 ATM and a day length of around thirty days. By this time the technology to move other worlds had become so advanced that it was now possible to move Mercury into Venus' orbit. This allowed its day/night cycle to stabilize. Moving Venus into Earth's orbit was considered and quickly abandoned, due to its sheer mass, and the large distance that they would need to move it. With Mercury out of the way, Venus became the first planet in the Solar System - a title it held until the arrival of Vulcan in 3021.
By the year 2500 Venus had become a virtual tropical paradise. The mainland, the continent of Aphrodite, is where the majority of Venusians live - even this has not changed over all these years.
The mainland of Venus, the equatorial continent of Aphrodite, is where the majority of the 12 billion descendants of the first human colonists live. Many of the first colonists to begin to settle the planet came from many of Earth's equatorial regions, like Africa, Central and South America, and Oceania. Of course, many others came to live there as well, but most came from those areas. Over the many thousands of years, the Venusian’s skin has darkened to accommodate the increase in sunlight. No other major changes have occurred - Venusians are considered in the same subspecies as Earthlings (or Terrans).
Venus, being closer to the Sun, is a largely warm tropical world. Due to the slightly lower gravity, transplanted tropical trees grow a bit taller than they would on Earth; animals are also a bit more agile and taller. Venus also has more of a cloud cover than Earth does, most of which are large rainstorms. This keeps the planet cooler and the plants more active in reducing CO2 levels.
Venus does have a few deserts which is where many Arab colonists set up their own caravans.
Thanks to careful planning, cities on Venus do not give off much light pollution at all, leaving the night side of the planet mostly dark. Venus is the second most populated world in the Sol System - second only to Earth.