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Word: tripos (lookup in dictionary) (lookup stats)
Dates: during 1960-1969
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Word Time Machine

Normalized population density for word "tripos" throughout decades:

1870s : 13.7688
1880s : 5.5489
1890s : 0.8290
1920s : 2.1351
1930s : 1.6176
1940s : 0.2223
1960s : 0.3429
1970s : 0.3132
1980s : 0.6482