Creationism has not been the dominant belief in American Christianity for many years until the rise of the Evangelical movement. (religion.blogs.cnn.com)
The dominant belief system is: «You do the best you can, you get your registry ready, you go to the childbirth education class, you hire your doula and wish for the best.» (magamama.com)
In Cajal's time, the dominant belief was that the brain and nervous system formed a «reticulum,» a web of fibers that conducted nerve signals continuously, through a network of connections that linked it all together. (discovermagazine.com)