Search Harper's Index: Numbers and statistics filed under "1900s"

6/85Average age at which American girls began to menstruate in 1900: 14.3

7/90Average number of Latin American countries the United States has invaded and occupied each decade since 1900: 5

12/95Ratio of Republicans to Democrats elected president since 1900 who lost their bid for re-election: 4:1

4/95Rank of New York among states with the highest incidence of wrongful execution between 1900 and 1965: 1

7/95Chances that a U.S. urban public-school student in 1909 was born to immigrants: 1 in 2

Chances today: 1 in 18

10/96Number of times since 1906 that Congress has voted against granting the FDA jurisdiction over tobacco: 18

Estimated number there today: 2,500

1/00Factor by which the estimated size of the universe has been increased since 1900: 1,000,000

12/00Number of planes crashed by the Wright brothers before their first successful flight on December 17, 1903: 1

7/03Estimated percentage of U.S. workers who were “creative professionals” in 1900, 1980, and 2000, respectively: 10, 19, 30

8/03Number of countries to which the U.S. sent troops between 1900 and 1993 for the purpose of establishing democracy: 14

Number that were democracies ten years after the withdrawal of U.S. forces: 4

2/05Number of black U.S. senators during the entire 1800s, the entire 1900s, and today, respectively: 2, 2, 1

1/08Number of the 194 nations in the world that have had one or more female heads of state since 1900: 30