The first group is called a dendritic cell disorder, and the most common disease in this group is Langerhans Cell Histiocytosis (LCH) previously known as Histiocytosis X. Also included in this group are more rare diseases, juvenile xanthogranuloma (JXG) and Erdheim-Chester Disease (ECD).
Franklin D. Roosevelt Franklin D Roosevelt was born January 30th 1882. He got married at the age of  23 to his cousin Eleanor Roosevelt. Sixteen years later he was diagnosed with polio, and became paralyzed from the waste down.
Follow Business Insider: In America, men and women are waiting longer than ever to get married for the first time. In the 1950s, women married at age 20 and men at 23. The median age at first marriage has been rising rapidly ever since.