Decades: 360s BC 350s BC 340s BC 330s BC 320s BC - 310s BC - 300s BC 290s BC 280s BC 270s BC 260s BC
Years: 319 BC 318 BC 317 BC 316 BC 315 BC 314 BC 313 BC 312 BC 311 BC 310 BC
... the study of pollen grains and spores (palynomorphs) in the atmosphere
Aetiology, the medical study of the causation of disease
Agnoiology[?], the study ...
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