when did she start the movement to control birth?
Between 1915 to 1916
Margaret Sanger
Some countries in northwestern Europe had more liberal policies towards contraception than the United States at the time, and when Sanger visited a Dutch birth control clinic in 1915, she learned about diaphragms and became convinced that they were a more effective means of contraception than the suppositories and douches that she had been distributing back in the United States. Diaphragms were generally unavailable in the United States, so Sanger and others began importing them from Europe, in defiance of United States law.

On October 16, 1916, Sanger opened a family planning and birth control clinic at 46 Amboy Street in the Brownsville neighborhood of Brooklyn, the first of its kind in the United States. 
was birth control ever illegal in the united states Yes,  from the beginning of 1914 when did it become legal? UNANSWERABLE who opened the first birth control dispensary? Sanger partnering with Fania Mindell and Ethel Byrne did this concept of birth control face resistance? Yes,  large sectors of the medical community were still resistant to birth control, birth control advocates were blacklisted by the radio industry and state and federal laws who is the first person mentioned above? Margaret Higgins Sanger was an American birth control activist, sex educator, writer, and nurse what was her view on feticide? She opposed abortion and sharply distinguished it from birth control
wiki:25674933
Margaret Sanger [SEP] Birth control movement
Some countries in northwestern Europe had more liberal policies towards contraception than the United States at the time, and when Sanger visited a Dutch birth control clinic in 1915, she learned about diaphragms and became convinced that they were a more effective means of contraception than the suppositories and douches that she had been distributing back in the United States. Diaphragms were generally unavailable in the United States, so Sanger and others began importing them from Europe, in defiance of United States law. On October 16, 1916, Sanger opened a family planning and birth control clinic at 46 Amboy Street in the Brownsville neighborhood of Brooklyn, the first of its kind in the United States.