1910s: The average salary for farm workers is $830 a year.

1990s: The average farm laborer makes approximately $22,000 a year.

1917: The United States enters World War 1. Women are prohibited by law from fighting in the battlefield, but nearly 9,000 Red Cross nurses, including many women, serve with the Army and Navy Nurse Corps in Europe.

1991: During the Persian Gulf War, 13 American women soldiers are killed and two are taken prisoner.

1880s: Approximately 2.5 million U.S. women engage in paid work.

1990s: Over 3 million U.S. women work at least two jobs to make ends meet.

1917: The homicide rate is 6.9 per 100,000 people in the United States.

1992: The homicide rate is 9.3 per 100,000 people in the United States.