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Words getting along nicely ....

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Word: challenge (lookup in dictionary) (lookup stats)
Dates: during 1900-1909
Sort By: most recent first (reverse)

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Word Time Machine

Normalized population density for word "challenge" throughout decades:

1870s : 2.0414
1880s : 1.1367
1890s : 0.8247
1900s : 0.5025
1910s : 0.3400
1920s : 0.3632
1930s : 0.3973
1940s : 0.4354
1950s : 0.6600
1960s : 0.9670
1970s : 0.9926
1980s : 1.1866
1990s : 1.2656
2000s : 1.5506
2010s : 1.8089