2121 is a utopian novel about the conviction of Chad Delano of Portland, Maine in 2117 of negligent chemical manslaughter and his struggle to overcome that erroneous judgment. His sister, Eleanor Perkins, had become an astronaut and traveled to Mars in 2119, with her husband, Max Trenkler, a distant relative of the wrongly convicted Alfred Trenkler. They became the parents of twin girls in 2121, the first humans born on another planet. The book describes the changing 21st world of Chad's parents, grandparents and great-grandparents which underwent a "Great Transformation" after the 2014 publication of the utopian novella, JESUS AND JESUSA, and the 2019 nuclear explosion in Brownsville, Texas. These two events convinced people throughout the world to fix the environment by reducing the carbon dioxide concentrations in the atmosphere and by reducing the size of the human population. It also led to a larger level of religious tolerance around the world. In the United States, there was a special campaign to reduce the frequency of wrongful convictions to .1% of criminal convictions. This required several changes to the criminal justice system, including changing the standard of guilt, as the previous estimates of wrongful conviction ranged from .5% to 6%. 2121 is a companion book to JESUS AND JESUSA, which is a utopian novella about the cloning of the foreskin of Jesus of Nazareth to create an identical brother and sister, Jesus and Jesusa. The two books can be read separately or together, with JESUS AND JESUSA recommended to be read first.