in the US and Canada had no Baháʼís at all; thirty‑four lacked spiritual assemblies. In 1938 Baháʼí communities and Local Spiritual Assemblies began to form across Latin America with the spread of American Baháʼís, while inside the United States individuals like Guy Murchie, Robert Hayden, Robert B. Powers, joined the religion and others who were raised in the religion achieved increasing levels of service in it like Marion Holley and Dorothy Beecher Baker or otherwise became more well known in the world like Bernard Leach, Carole Lombard, Barbara Hale, Lois Hall and William Sears. In April 1953 the Baháʼí House of Worship (Wilmette, Illinois) was formally dedicated. During through shortly after WWII the community roughly quadrupled even while the average size of communities dropped from 30 to 15 and 15 became the idealized as able to support various activities like regular Feasts, Holy Day observances, public meetings, assembly meetings. At the same time activities that used to be run by individuals on their own initiative became functions of appointed committees. Up to 1944, delegates to the national convention were selected based on local assemblies - in 1944 they were elected on the basis of statewide regional conventions of Baháʼís. In 1947, at a time when the Baháʼís number approaching 5000 in America, Baháʼí students at the University of Chicago participated in a demonstration against the segregation and discrimination based on race for medical treatment of students on campus. In 1955 American Baháʼís and institutions spoke up following the destruction of a Baháʼí center of worship in Iran. From the latter 1940s into the early 1960s the population of Bahá’ís doubled every thirteen years even while the community was sending out pioneers to South America and Europe across the 1930s and 40s. In 1941, National Spiritual Assembly of the Bahá'ís of the United States and Canada(NSA) filed a suit in the Supreme court of New York County against Mirza Ahmad Sohrab to stop him from using the name "Bahá'í". The judge dismissed the case, stating that, the complaint fails to state a good cause of action. The NSA appealed but the Appellate Court affirmed the decision of the lower court. Since the 1900s and on beyond the 1940s minorities grew in the community - African Americans grew from single digit percentages to the teens, over-represented compared to the states Bahá'ís were present in at the time, rose to higher percentages across