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401:Categories
362:(1 C, 1 P)
345:(1 C, 2 P)
294:(1 C, 3 P)
226:(2 C, 1 P)
209:(2 C, 3 P)
40:decade
38:in the
35:biology
386:(3 C)
328:(1 C)
311:(1 C)
277:(1 C)
260:(1 C)
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111:1940s
106:1930s
101:1920s
96:1910s
91:1900s
86:1890s
81:1880s
76:1870s
71:1860s
66:1850s
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42:1890s
174:24th
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