Primitive peoples believed that diseases were caused by evil spirits and treated illnesses by attempting to drive out demons with harmful substances from plants, herbs, and animals. Ancient Egyptian papyrus texts contained recipes using minerals, herbs, animal products, and gemstones. The Greeks and Romans treated patients with prayers, sacrifices, cleansing baths, and purges. It was not until the 19th century that the germ theory of disease became more widely accepted, with scientists like Pasteur and Koch working to understand disease-causing microorganisms and find safe ways to eliminate them in patients.

2. INDEX
• Who belived primitive towns?
• Egypt
• Greece and Rome
• Century XIX

3. WHO BELIVED PRIMITIVE TOWNS?
Before beginning the story, first, let's see
the beliefs of primitive peoples about the
diseases. It is believed that one at that time
the world was full of good and evil spirits
and for treat people had to drive out demons
by the administration of harmful substances
( lost time injury ). Used herbs, plants and
other animal products.

4. EGYPT
Erberg papyrus had recipes and formulations
with a large number of these materials.
Example: castor oil , mint , opium, aloe...
They used many minerals as iron , copper
sulfate , magnesium and finely powdered
gemstones.
Among animal products lizards blood , teeth
pork, fat and animal excreta. It is thought that
the Egyptians used marijuana to numb
patients before surgery.

5. GREECE AND ROME
The patient was treated with prayers and
sacrifices, cleaning with mineral baths and
internal cleansing catharsis.
In the writings of Hippocrates put more than
400 drugs, but only used a small number of
them.
Galen, a Greek physician established a
system of medicine and pharmacy which
became a supreme authority for hundreds of
years.
GALEN
HIPPOCRATES

6. CENTURY XIX
At this time the theory that germs cause disease are increased. We have
for example Pasteur and Koch who dedicated his life to studying this
theory and find how to eliminate these organisms without causing harm to
the patient.