Final answer:
Changes in maternity care for first-time pregnant women during the 20th century include increased information about birth control, the Sheppard-Towner Act reducing infant mortality rates, and the fight for employment protections during pregnancy and childbirth.
Step-by-step explanation:
When discussing events of the 20th century, changes in maternity care for first-time pregnant women can be highlighted, such as the increased availability of information about birth control in the 1920s and the impact of the women's rights movement. The Sheppard-Towner Act in 1921 allocated funding for well-baby clinics and educational programs, reducing infant mortality rates. Additionally, in the 1960s, women fought for employment protections during pregnancy and childbirth to combat workplace discrimination.