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Word: quadrilateral (lookup in dictionary) (lookup stats)
Dates: during 173485-173485
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Word Time Machine

Normalized population density for word "quadrilateral" throughout decades:

1870s : 9.1213
1880s : 1.8380
1920s : 1.2124
1930s : 2.2964
1940s : 2.2090
1960s : 0.6814
1970s : 0.3112
1980s : 0.3221
1990s : 0.8235
2000s : 0.7863