Medieval manuscript illuminates monthly guidance on living well

A medieval manuscript illuminates monthly guides to diet and health.

Salubrious advice for January (Aquarius) and February (Pisces)…
March (Aries) and April (Taurus)…
May (Gemini) and June (Cancer)…
July (Leo) and August (Virgo)…
September (Libra) and October (Scorpio)
November (Sagittarius) and December (Capricorn)

In the middle ages, as now, following rules could give comfort in the chaos of life. Shown here are all six pages of an illuminated manuscript offering medical and dietary advice month by month for a year, mapped by the signs of the zodiac. It begins with an embellished headline, “Kalends Ianuarii,” and a drawing of Aquarius. Throughout, the names of the months are given in Hebrew and Greek, as well as Latin. The core of the manuscript consists of a series of Latin hexameters embedded within a scattering of dicta on how to lead a healthy life. Thus:

  • January: Escas per Janum calidas es sumere sanum. (In January, it’s healthiest to eat warm food.)
  • February: Avoid frost, and let blood flow from the thumb. 
  • March: Eat roasted meat and take baths. 
  • April: Fill your belly with fluids and drain the foot of blood. 
  • May: These seven things are useful for good spices. 
  • June: Eat lettuce leaves with apples, and drink from fountains. 
  • July: Do not slash the veins, moreover avoid them altogether. 
  • August: Avoid warm food, this month you have no need of it. 
  • September: Blood-letting is good, and then you ought to eat spices. 
  • October: Drink cattle or curdled sheep’s milk. 
  • November: At this time spices with cinnamon are useful to man. 
  • December: In the month of December, warm things are good for your limbs.

The manuscript is explicated by Jeffrey F. Hamburger, Francke professor of German art and culture, in an essay, “Rules to Live By: A Late Thirteenth-Century De Regimine mensium,” published last July in the Harvard Library Bulletin, volume 21, numbers 1-2. The manual is complete, but it is only a fragment of a longer manuscript on a topic and by an author unknown, created one doesn’t know precisely where or when. Hamburger writes that illustrated medical manuscripts “would appear to remain very rare” and guesses that the book may have belonged “to a wealthy patient or perhaps to a monastic library.”

The double issue of the Bulletin, edited by Hamburger and entitled “Piecing Together the Picture: Fragments of German and Netherlandish Manuscripts in Houghton Library,” came about in this way. In March 2010, a “group of colleagues,” most from Germany, got together at the Radcliffe Institute for a colloquium on German manuscript illumination. The speakers visited Houghton Library, where librarians had spread out for examination virtually all of the German illuminated manuscripts the library has. These treasures knocked the socks off the assembled academics, who, Hamburger tells us, decided “on the spot” that each would choose one of the fragments before them as the subject of a short essay. Hence this special issue, the serendipitous outcome of a gathering of stimulated scholars.

Read more articles by Christopher Reed

You might also like

How to Cook with Wild Plants

From wild greens spanakopita to rose petal panna cotta, forager and chef Ellen Zachos makes one-of-a-kind meals.

For This Poet, AI Is a Writing Partner

Sasha Stiles trained a chatbot on her manuscripts. Now, her poems rewrite themselves.

A New Black Swan Musical Cranks Up the Tension

The creative team of the A.R.T.’s new show dish on adapting Darren Aronofsky’s thriller classic from screen to stage.

Most popular

Meet Harvard’s 2026 Student Commencement Speakers

Two undergraduates and a Ph.D. candidate will address the graduating class on May 28.

Ronny Chieng Tells Harvard to ‘Destroy AI’ as Graduates Cheer

The comedian and The Daily Show host gave the keynote address for Class Day 2026.

Harvard Faculty Approve a Cap on A Grades

Reforms to reduce grade inflation will take effect in the fall of 2027.

Explore More From Current Issue

White House and Harvard University buildings split diagonally with contrasting colors.

Harvard Weathers a Year of Turmoil

The federal government has launched unprecedented actions against the University. Here’s a guide.

Portrait of a man with white hair, wearing a black coat, arms crossed, thoughtful expression.

The Framer Who Refused to Sign the Constitution

Harvard’s Elbridge Gerry helped draft the U.S. Constitution, but worried it might create a new monarch.

Historical scene in colonial Boston depicting British soldiers confronting civilians, with smoke rising, in a city street.

Houghton Library Displays Revolution-era News and Propaganda

A new exhibit reveals how early Americans learned about the war.