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Word: spontaneous (lookup in dictionary) (lookup stats)
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Word Time Machine

Normalized population density for word "spontaneous" throughout decades:

1870s : 0.2318
1880s : 0.3503
1890s : 0.5024
1900s : 0.7869
1910s : 0.7055
1920s : 0.9010
1930s : 0.9978
1940s : 1.1001
1950s : 1.1685
1960s : 1.3202
1970s : 1.2572
1980s : 1.0925
1990s : 0.8091
2000s : 0.8791
2010s : 0.6927