control, as well as with the ethics of economically motivated mass sterilization programs. Some scholars, such as Bonnie Mass and Iris Lopez, have argued that the history and popularity of mass sterilization in Puerto Rico represents a government-led eugenics initiative for population control. They cite the private and government funding of sterilization, coercive practices, and the eugenics ideology of Puerto Rican and American governments and physicians as evidence of a mass sterilization campaign. On the other side of the debate, scholars like Laura Briggs have argued that evidence does not substantiate claims of a mass sterilization program. She further argues that reducing the popularity of sterilization in Puerto Rico to a state initiative ignores the legacy of Puerto Rican feminist activism in favor or birth control legalization and the individual agency of Puerto Rican women in making decisions about family planning. Effects When the United States took census of Puerto Rico in 1899, the birth rate was 40 births per one thousand people. By 1961, the birth rate had dropped to 30.8 per thousand. In 1955, 16.5% of Puerto Rican women of childbearing age had been sterilized, this jumped to 34% in 1965. In 1969, sociologist Harriet Presser analyzed the 1965 Master Sample Survey of Health and Welfare in Puerto Rico. She specifically analyzed data from the survey for women ages 20 to 49 who had at least one birth, resulting in an overall sample size of 1,071 women. She found that over 34% of women aged 20–49 had been sterilized in Puerto Rico in 1965. Presser's analysis also found that 46.7% of women who reported they were sterilized were between the ages of 34 and 39. Of the sample of women sterilized, 46.6% had been married 15 to 19 years, 43.9% had been married for 10-to-14 years, and 42.7% had been married for 20-to-24 years. Nearly 50% of women sterilized had three or four births. Over 1/3 of women who reported being sterilized were sterilized in their twenties, with the average age of sterilization being 26. A survey by a team of Americans in 1975 confirmed Presser's assessment that nearly 1/3 of Puerto Rican women of childbearing age had been sterilized. As of 1977, Puerto Rico had the highest proportion of childbearing-aged persons sterilized in the world. In 1993, ethnographic work done in New York by anthropologist Iris Lopez showed that the history of sterilization continued to effect the