This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Thomas Dimsdale cropped. Thomas Dimsdale an English physician achieved success through variolation He achieved some renown by inoculating Empress Catherine the Great of Russia and her year old son the Grand Duke Paul in In his account he describes the process Dimsdale Thomas Tracts on inoculation written and published at St