Romanticism: the theory of DarwinismCharles Robert Darwin was an English naturalist of the 19th century. He joined a team of scientists who explored the world for five years on a ship. The naturalist contributed to the knowledge of the evolution of life on earth. Darwin is a notable figure in the history of evolution due to his theory of Darwinism. Two of the fundamental facts of Darwin's theory are: Evolution and Natural Selection. Charles Darwin understood that species appear and disappear over time, as they exist, transform, or change. Understanding species variation was essential to the development of the theory of Darwinism. Darwin began to see the movement of individuals while he was on the voyage of the Beagle. He paid more attention to the varieties of individuals during his work on barnacles, houseplants, and animals. Variability is an important part of natural selection and the most important aspect of evolution. The article “Short Essay on Darwin's Theory of Natural Selection” written on PreserveArticles.com states: “Differences between descendants of the same species are called variations. […] Such variations were of two types, some were hereditary while others were not hereditary” (Vijaykant, par. 12). Charles Darwin was not keen on the theory of heredity, which is why he was unable to explain the causes of such variation. Variation is a term used in genetics, it causes an individual or a group of a certain type of species to maintain different traits from each other. The variations do not provide evidence of evolution because they are the result of different assortments already existing in the genetic information. Therefore, the variations do not add any new traits to the genetic information…half of the paper…and natural selection works. Darwin proved his theory using artificial selection and working with domestic animals and plants. To conclude, Charles Robert Darwin was a notable naturalist who had a great influence in the history of evolution thanks to his theory of Darwinism. Although doubted, his theory of variation helped uncover the truth. Variations make changes that remain only within the limits of the genetic information of an individual or species, it is not possible to add new genetic information to it. Darwin's theory of natural selection is the most successful due to the data collected and examples provided to support his theory. In other scientific research it is said that natural selection is not the only cause of evolution. Darwin himself said: "Natural selection is an important cause of variation but not the only reason for it."