Abū Bakr al-Rāzī
the man who kept the whole clinic in one book.

Al-Rāzī was born around 854 in Rayy, a city beside modern Tehran and then one of the great centres of the Persian world. He came to medicine late. His first loves were music — he was an accomplished lutenist — and alchemy, and he wrote on philosophy his whole life. The story goes that he turned to medicine in his thirties, after time spent in a Baghdad hospital, and threw himself into it with the same appetite he had brought to everything else.

He rose quickly. He was made director of the bimaristan — the hospital — first in his native Rayy and then at the far larger institution in Baghdad, capital of the Abbasid caliphate and, at the time, the intellectual centre of the world. There is a famous story about how he chose the site for the Baghdad hospital: he hung strips of raw meat at points across the city and built where the meat spoiled slowest — the cleanest air. True or not, it is the right story about the man. A physician who trusted a test he could run over a rule he had been handed.

What set al-Rāzī apart from the physicians around him was that he watched. He kept his patients under observation and wrote down what happened to them — the course of a fever, what he tried, whether it worked. He was willing to contradict Galen himself when his own eyes told him something different, and he wrote a whole book doing exactly that: Doubts about Galen.

His powers of observation produced one genuine landmark — the first clear clinical account distinguishing smallpox from measles, two diseases that had been blurred together for centuries. To tell them apart he relied on nothing but careful, sustained watching of real patients: the rash, the fever, the timing. A short casebook of his survives too — around thirty-three patients, each set down as an individual, with the complaint, the course, and the outcome. It is one of the earliest sets of clinical case records we have, and it reads, uncannily, like ward rounds.

Al-Rāzī's largest work was never really written; it was assembled. Throughout his life he kept working notes: for every disease he treated he collected what the Greek, Indian, and Arab authorities had said about it, and then — crucially — added his own cases and his own disagreements. After his death his students gathered these papers into a single vast compendium, al-Hawi, “The Comprehensive Book”. Translated into Latin as the Continens and printed a thousand years later, it was among the largest medical books of its age.

What matters is what kind of book it is. Not a treatise composed for readers — a working reference. A clinic's accumulated memory, organized so a physician could look up a condition and find, in one place, everything known alongside everything seen. Received wisdom and lived experience, side by side, kept current, meant to be used at the bedside. That is not a textbook. That is an operational record.

Every clinic since has needed some version of al-Hawi: the working book the whole team keeps and returns to. Who came in, what was found, what was ordered, what happened next — recorded not for posterity but so the next person on shift can pick up where the last one left off. The substrate changed — ledgers, index cards, the first hospital information systems, the electronic health record — but the job is al-Rāzī's: keep the clinic's knowledge in one place, current, and usable by everyone who works there.

This is a different book from the patient's own chart. Galen — the name we gave the patient-owned record — is the story the patient carries with them. Razi is the clinic's operational record: multi-user, encounter by encounter, orders and notes and schedules, the day-to-day system the practice actually runs on. The two can talk to each other through the patient's own key. But they were never the same book, and al-Rāzī is the reason we can tell them apart.

We took al-Rāzī's name for the clinic-side EHR because that is precisely what he built: a comprehensive, working, continuously updated record of clinical practice, made to be consulted every day by the people doing the work. Not the physician's monument — the clinic's memory.

He would, we think, have had opinions about the software. He always did. But he would have recognized the thing itself at once: everything the clinic knows and everything it has seen, kept in one book, open on the desk, and trusted because someone wrote it down.