सरुको हरफ - अंग्रेजी - The earliest references to animal testing are...

The earliest references to animal testing are found in the writings of the Greeks in the second and fourth centuries BCE. Aristotle and Erasistratus were among the first to perform experiments on living animals .Galen, a physician in second-century Rome, dissected pigs and goats, and is known as the "father of vivisection.