This timeline targets scientific and medicinal milestones (including invalidated ones) while comparing them to pseudo-science and religious claims--thereby showing the level of science and technology in all places of the world when they were made, thus making their faults more apparent. Other selected major historical events have been added to add perspective. Each historical event is linked to a Wikipedia entry that describes the event in detail.
13.7 bil c
The Universe begins.
3.7 bil c
Life on Earth evolved.
Homo sapiens evolved.
Pottery is first made.
Domestication of the first animals occurs.
Agriculture is first used.
The most recent major Ice age ended.
Early Hinduism begins.
The 360 day Egyptian calendar is first used.
The exact date of the universe's creation according to Abrahamic religions.
Cuneiform script, the earliest form of writing is created by the Sumerians.
Circumcision is first practiced in Egypt.
Judaism is established.
Pi is calculated properly to 1 decimal place by the Babylonians.
Astrology is first documented in Babylonia.
Jainism is established.
Buddhism is established.
Atheism is established.
Zoroastrianism is established.
Blast furnaces are first used in China.
Smallpox is first described.
Bloodletting is in common use.
Alchemy falls out of use in Egypt.
Shinto is established.
The circumference of the earth is measured by Eratosthenes with a 2%-20% margin of error.
Common Era begins.
The first codexes (books) are written.
Alchemy falls out of use in Greece.
The first ever psychiatric hospital is built in Baghdad.
Chemistry begins in Arabia
Blast furnaces are first used in Europe.
The Bethlem Royal Hospital becomes the first psychiatric hospital in Europe.
Modern dowsing becomes popular.
The Spanish Inquisition begins.
The Age of Discovery begins.
The Scientific Revolution begins.
Viral inoculations become popular in China.
The first documented influenza pandemic affects Africa, then Asia and Europe.
The circulatory system receives significant knowledge thanks to William Harvey's book "An Anatomical Exercise on the Motion of the Heart and Blood in Living Beings".
Viral inoculations are brought to Europe.
"Elements of Chemistry" by Antoine Lavoisier is published.
"Atomic Theory" by John Dalton is published.
Placebos are first published in Hooper's medical dictionary.
The Spanish Inquisition officially ends.
The Bahá'í Faith begins.
Bloodletting falls out of popular use.
Pangenesis is described by Charles Darwin in his book "The Variation of Animals and Plants Under Domestication".
Quantum Physics has work started on it.
Humorism falls out of popular use.
World War I begins.
Reflexology is invented by William H. Fitzgerald.
The Spanish flu kills around 45 million.
The placebo effect is detailed by T.C. Graves.
World War II officially begins.
String theory is developed.
Prions are theorized by Tikvah Alper and J.S. Griffith.
Nocebo is coined as a counterpart to a placebo by Walter Kennedy.
Smallpox no longer exists outside of laboratories.
While it is proper to display the circa symbol of 'c' before a date, I've placed it after the date to keep the flow of the year column. Rows without a year should use the year above it.