31 jul 1873 año - Hansens disease germ first discovered
Descripción:
Dr. Gerhard Henrik Armauer Hansen of Norway was the first person to identify the germ that causes leprosy under a microscope. Hansen's discovery of Mycobacterium leprae proved that leprosy was caused by a germ, and was thus not hereditary, from a curse, or from a sin.Añadido al timeline:
fecha:
31 jul 1873 año
Ahora mismo
~ 152 years ago