Figure 3.

Historical taxonomic trends, organized by major kingdoms. The taxonomic trends for each major kingdom are shown in the left column, where the x-axis represents years from 1750 to 2000 and the number of descriptions per year are along the y-axis. In the right column, pie charts are used to illustrate the number of descriptions before (blue) or after (red) 1923, a benchmark date for US Copyright law. Notably missing from the analyzed data are the Viruses, for which dates of descriptions could not be readily identified based on the data in uBio.