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15 09, 2017

West Asian science – Mesopotamia and Iran

By |2019-09-04T05:49:39-07:00September 15th, 2017|West Asia|0 Comments

The constellation Orion What did Mesopotamians invent? From the Stone Age through the Islamic empires, great scientific discoveries have streamed out of West Asia. West Asia is one of the places where farming got started, and maybe the sailboat. Farming  Early ships and sailing Numbers and writing The pottery wheel All our West Asia articles The Sumerians developed the [...]

7 09, 2017

What is yellow fever? – History of medicine

By |2019-03-28T12:19:12-07:00September 7th, 2017|Africa, Science|0 Comments

Kids with yellow fever in Mississippi about 1870. See how all the people are white? The hospital wasn't letting black kids in, or hiring black women as nurses. Where did yellow fever get started? The virus that causes yellow fever probably evolved from an earlier virus that didn't make people sick. The first cases of [...]

7 09, 2017

What is typhus? History of diseases

By |2017-09-07T10:30:32-07:00September 7th, 2017|Science|0 Comments

A woman with typhus Nobody seems to have caught typhus before about 1450 AD, so the disease probably didn't exist until then. Typhus is an infection caused by tiny germs (bacteria) that live inside animal cells, and most people caught the germs from lice, when the lice bit them (the lice die of typhus too). [...]

7 09, 2017

What is typhoid fever? History of diseases

By |2018-09-11T05:38:29-07:00September 7th, 2017|Science|0 Comments

Typhoid fever: A person with typhoid rash (Iran) Is it typhoid or typhus? Typhoid fever isn't the same thing as typhus at all. You catch typhus from being bit by lice that have bitten people with typhoid, and you catch typhoid from drinking water with traces of human poop in it. (You can't catch typhoid from animals.) Find [...]

7 09, 2017

What is tuberculosis? History of diseases

By |2019-04-03T13:26:04-07:00September 7th, 2017|Science, West Asia|0 Comments

A child with tuberculosis What is tuberculosis? Tuberculosis is a lung disease caused by germs. Today we can usually cure it with antibiotics. But in antiquity there was no cure. Many people died of tuberculosis. What are germs? What do your lungs do? More about diseases When did tuberculosis get going? One kind of tuberculosis seems [...]

7 09, 2017

What was smallpox? History of disease

By |2018-04-15T17:01:43-07:00September 7th, 2017|Central Asia, Science|0 Comments

A baby with smallpox (from the CDC) Smallpox was a very serious disease caused by a virus. Many people died of it. Smallpox caused little bumps on your skin, like chickenpox but much more serious. About two to five of every ten people who got smallpox died of it. There was (and is still) [...]

7 09, 2017

What is opium? World history of medicine and drugs

By |2017-09-07T09:33:48-07:00September 7th, 2017|Central Asia, Science|1 Comment

Opium poppy flower Opium comes from a kind of poppy flower. It evolved around 100 million years ago in West Asia and Central Asia. People probably realized as soon as they got to West Asia, about 60,000 years ago, that you could use opium as a medicine. By 6000 BC, in the Stone Age, West Asian farmers were already growing opium in their [...]

7 09, 2017

What is measles? History of diseases and medicine

By |2018-04-25T17:11:36-07:00September 7th, 2017|History, Science|0 Comments

A kid with measles Measles is a sickness that first makes you feel sick, with a fever, a cough, and a runny nose. Then it gives you a rash all over your skin. It is caused by a virus, and you usually catch it by touching a person with measles, or touching something they [...]

6 09, 2017

History of medicine

By |2018-04-18T18:18:03-07:00September 6th, 2017|Science|0 Comments

Chinese drawing of the organs (about 1200) There are really three branches of medicine in antiquity and through the Middle Ages. One of these might be called "doctor medicine," or "scientific medicine." Doctors try to observe sicknesses and look for logical patterns. They figure out how the human body works, and from there figure [...]

6 09, 2017

Human organs: medieval science

By |2019-09-15T21:13:36-07:00September 6th, 2017|Biology, Science|0 Comments

Chinese drawing of the human organs (about 1200) Eyes and fevers Between the Middle Ages and modern times, doctors have learned a lot of new things about how human bodies work. Earlier history of the human body History of medicine History of science All our biology articles The Islamic doctor al-Tabari, in the early 800s, [...]