were in line with the rhetoric of the Church. A case example is the Catholic need for an accurate calendar. Calendar reform was a touchy subject: civilians doubted the accuracy of the mathematics and were upset that the process unfairly selected curators of the reform. The Roman Catholic Church needed a precise date for the Easter Sabbath, and thus the Church was highly supportive of calendar reform. The need for the correct date of Easter was also the impetus of cathedral construction. Cathedrals essentially functioned as massive scale sun dials and, in some cases, camera obscuras. They were efficient scientific devices because they rose high enough for their naves to determine the summer and winter solstices. Heilbron contends that as far back as the twelfth century, the Roman Catholic Church was funding scientific discovery and the recovery of ancient Greek scientific texts. However, the Copernican revolution challenged the view held the Catholic Church and placed the Sun at the center of the solar system. Perspectives on evolution In recent history, the theory of evolution has been at the center of some controversy between Christianity and science. Christians who accept a literal interpretation of the biblical account of creation find incompatibility between Darwinian evolution and their interpretation of the Christian faith. Creation science or scientific creationism is a branch of creationism that attempts to provide scientific support for a literal reading of the Genesis creation narrative in the Book of Genesis and attempts to disprove generally accepted scientific facts, theories and scientific paradigms about the geological history of the Earth, cosmology of the early universe, the chemical origins of life and biological evolution. It began in the 1960s as a fundamentalist Christian effort in the United States to prove Biblical inerrancy and falsify the scientific evidence for evolution. It has since developed a sizable religious following in the United States, with creation science ministries branching worldwide. In 1925, The State of Tennessee passed the Butler Act, which prohibited the teaching of the theory of evolution in all schools in the state. Later that year, a similar law was passed in Mississippi, and likewise, Arkansas in 1927. In 1968, these "anti-monkey" laws were struck down by the Supreme Court of the United States as unconstitutional, "because they established a religious doctrine violating both the First and Fourth Amendments to the Constitution." Most scientists have rejected creation science for several reasons, including that