who opened the first birth control dispensary?
Sanger partnering with Fania Mindell and Ethel Byrne
Birth control movement in the United States
On October 16, 1916, she, partnering with Fania Mindell and Ethel Byrne, opened the Brownsville clinic in Brooklyn. 
was birth control ever illegal in the united states Yes,  from the beginning of 1914 when did it become legal? UNANSWERABLE
wiki:5456440
Birth control movement in the United States [SEP] First birth control clinic
Weakened and ill, Byrne refused to end her hunger strike at the cost of securing early release from prison. However, Sanger accepted the plea bargain on her sister's behalf, agreeing that Byrne would be released early from prison if she ended her birth control activism. Horrified, Byrne's relationship quickly eroded with her sister and, both forcefully and willingly, she left the birth control movement. Due to the drama of Byrne's demonstration, the birth control movement became a headline news story in which the organization's purpose was distributed across the country.