It has become much more prevalent. Some believe it is due to the vaccines children receive when they are babies, but that is a huge debate. Regardless of why, autism is now diagnosed in 1 in 88 children and some research says 1 in every 50 children. Perhaps like many other diagnosis, long ago, it just didn't have a name and Asperger's Syndrome is also under the autism umbrella, but with differing symptoms.