In 1929, Puerto Rican women who could read and write were enfranchised and in 1935 all adult women were enfranchised regardless of their level of literacy. Puerto Rico was the second Latin American country to recognize a woman's right to vote.[19] Both Dr. Maria Cadilla de Martinez and Ana María O'Neill were early advocates of women's rights. Cadilla de Martinez was also one of the first women in Puerto Rico to earn a doctoral (PhD) college degree.[52]