You once mentioned considering the dissemination of miss information.
The seed is set free from the parent plant and serves as the means of dissemination (see FLOWER; POLLINATION; FRUIT, and SEED).
The dissemination of plant parasites is favored by many circumstances not always obvious, whence an air of mystery regarding epidemics was easily created in earlier times.
The part played by certain blood-sucking Diptera in the dissemination of disease is now well known (see Mosquito and Tsetse-Fly), and under the term myiasis medical literature includes a lengthy recital of instances of the presence of Dipterous larvae in various parts of the living human body, and the injuries caused thereby.
But the greater part of the empire continued to exist under new masters, the Seleucids, as a Hellenistic power which was of great importance for the dissemination of Greek culture in the East.