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Words getting along nicely ....

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Word: challenges (lookup in dictionary) (lookup stats)
Dates: during 1920-1929
Sort By: most recent first (reverse)

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Word Time Machine

Normalized population density for word "challenges" throughout decades:

1870s : 0.8058
1880s : 0.2938
1890s : 0.3327
1900s : 0.1261
1910s : 0.0344
1920s : 0.1505
1930s : 0.1256
1940s : 0.1152
1950s : 0.2476
1960s : 0.5389
1970s : 0.7685
1980s : 1.0840
1990s : 1.4031
2000s : 2.3982
2010s : 3.6047