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The Viking Age
This collection on the Vikings, who dominated northern Europe from c. 790 CE to c. 1100 CE, examines not only their fearsome reputation for war and invasion but also their celebrated ships, navigational skills, and runes writing system. In...
Image
Physical Examination of a New Pope
A 1645 illustration showing a cardinal checking that Pope Innocent X (in office 1644-55) is indeed a man.
Definition
Robert Boyle
Robert Boyle (1627-1691) was an Anglo-Irish chemist, physicist, and experimental philosopher. Boyle was a prolific author, made significant experiments with air pumps, and presented the first litmus test. A founding member of the Royal Society...
Article
Women Scientists in the Scientific Revolution
Women scientists during the Scientific Revolution (1500-1700) were few in number because male-dominated educational institutions, as well as scientific societies and academies, barred women entry, meaning that few had the education or opportunity...
Definition
Alchemy
Alchemy is an ancient practice aimed at recreating precious substances using recipes and transformative materials such as the philosopher's stone. Alchemists believed that materials like gold, silver, gems, and purple dye could be recreated...
Definition
Germ Theory
The germ theory, which emerged in the late 19th century, demonstrated that microscopic germs caused most human infectious diseases. The germs involved included bacteria, viruses, fungi, protozoa, and prions. Louis Pasteur (1822-1895), a French...
Definition
Gnosticism
Gnosticism is the belief that human beings contain a piece of God (the highest good or a divine spark) within themselves, which has fallen from the immaterial world into the bodies of humans. All physical matter is subject to decay, rotting...
Article
Ancient Mesopotamian Beliefs in the Afterlife
Unlike the rich corpus of ancient Egyptian funerary texts, no such “guidebooks” from Mesopotamia detail the afterlife and the soul's fate after death. Instead, ancient Mesopotamian views of the afterlife must be pieced together...
Definition
Robert Hooke
Robert Hooke (1635-1703) was an English scientist, architect, and natural philosopher who became a key figure in the Scientific Revolution. Hooke conducted his scientific experiments outside the auspices of universities, and he was a great...
Article
Magic in Ancient Greece
For the Greeks magic (mageia or goeteia) was a wide-ranging topic which involved spells and evil prayers (epoidai), curse tablets (katadesmoi), enhancing drugs and deadly poisons (pharmaka), amulets (periapta) and powerful love potions (philtra...