My book The Crown and the Cosmos. Astrology and the Politics of Maximilian I
uncovers the fascinating history Emperor Maximilian I’s use of astrology as political instrument.
The Crown and the Cosmos

~Byzantine Science~
My new research focuses on mathematics and the sciences of the stars in 14th-century Constantinople, especially the network of polymaths around Nikephorus Gregoras.
Byzantine Science

Recent posts

Silenced Spring

March 19, 2017

Rachel Carson would have to write a murder mystery, I suspect, about involved a young socialite who knew too much and a sinister Dr. D.D. Thornton.

Patient #1

March 17, 2017

On May 20, 1817, five days after the Friends’ Asylum opened, a woman in her late 40s, who had been suffering from melancholy for 11 years was admitted to the asylum as Patient #1.[1] Neither … Read more

Anti-Smoking, ca. 1879

March 15, 2017

In 1879 the Phrenological Journal published two short anti-smoking reports. The first, in February, purportedly summarized an article in the British Medical Monthly: “What Smoking does for Boys.” Apparently a physician concerned by the number … Read more

Want to learn what an astrolabe is?
Want to learn how to operate one?
Download my introduction to the history and use of the astrolabe:
An Introduction to the Astrolabe