1950s: Radcliffe College, which Brenda attends, is a women's college and sister school to Harvard, a men's college.

1999: Radcliffe College merges with Harvard University; both are now completely co-ed.

1950s: Conservative Judaism, which originated in the 1840s, largely adheres to traditional Jewish religious practices, while allowing for some modernizing of these traditions. Less modernized than Reform Judaism, Conservative Judaism holds closer to the practices of Orthodoxy.

1990s: In 1985 the Conservative Jewish movement makes a significant change in policy when it begins to allow for the ordaining of female rabbis. This change increases the differences between Reform and Orthodox Jewish practices.

Pre-World-War-II era: There are approximately 11 million Yiddish-speaking people in the world.

Post-World-War-II era: Approximately half the world's population of Yiddish-speaking people have perished in the Holocaust.

1950s: Although the diaphragm is available to married women, access to birth control is limited for young, unmarried...