ABSTRACT
Early Life Paul Ehrlich was born on March 14, 1854, at Strehlen, Prussia, the child of a prosperous Jewish family. From his father, who was an eccentric innkeeper, Paul derived his hasty manner of speech, his excitability, and his interest in natural science. His cousin Karl Weigert, who was nine years his elder, was a model to Ehrlich, and they remained friends for the rest of their lives.
