what did loui pasteur do?

what did Robert Koch do?

what was created in the 19th centuary for anatomy?

in public health who were the two main people in the 19th centuary?

what were DR Jon Snow and Edwin Chadwick famouse for?

what was florance nightingales role in the 19th centuary.

what was florance nightingales role in the 19th centuary.

who was Elizibeth Garrett

who was humphry David

what did James simspon do?

what role did joseph lister do?