Who is Henry Burnett Tylor from Purity and Danger: An Analysis of Concepts of Pollution and Taboo and what is their importance?

Henry Burnett Tylor (1832-1917) developed a theory and gathered evidence that civilization is part of gradual progress as similar to contemporary savagery. In his publications he was interested in the survival of the unfit and vanished cultural ethics. While ignoring the classification of distinct cultural species he tried to reveal their adaptation throughout history while trying to show the continuity of human culture. He developed a theory that primitive religion evolved from speculative thought. According to Tylor, religion is belief in spiritual beings, and he tried to explain primitive beliefs as part of individual psychology.