In Europe, there has been a general move away from religious observance and belief in Christian teachings and a move towards secularism. The Enlightenment is largely responsible for the spread of secularism. Several scholars have argued for a link between the rise of secularism and Protestantism, attributing it to the wide-ranging freedom in the Protestant countries. In North America, South America and Australia Christian religious observance is much higher than in Europe. United States remains particularly religious in comparison to other developed countries. South America, historically Roman Catholic, has experienced a large Evangelical and Pentecostal infusion in the 20th and 21st centuries.