How the Republic of Letters made strangers behave like the internet’s first etiquette nerds

Centuries before email, forums and social media, scholars across Europe and beyond were already arguing, collaborating and oversharing in writing. They called their informal network the “Republic of Letters”.

This strange, mostly invisible world ran on strict rules of politeness, quirky customs and unspoken taboos. Understanding how it worked feels surprisingly familiar today, and it sheds light on how people tried to stay civil while trading ideas at a distance.

What was the Republic of Letters?

The “Republic of Letters” was not a country or an official organization. It was a loose community of people who read and wrote serious stuff: scholars, clergy, doctors, natural philosophers, even well educated nobles and artisans.

From roughly the 1500s to the 1700s, these people shared ideas by letter, sending news about books, experiments, discoveries and gossip across long distances. Latin was often the shared language, so a Dutch botanist and an Italian astronomer could still communicate.

Why etiquette mattered so much

Letters traveled slowly, could be intercepted and were expensive to send. You could also ruin your reputation with one careless phrase. In a world where your good name was your main credential, etiquette became a survival skill.

Many writers saw themselves as citizens of a polite, rational “republic” that rose above local politics and religion. To keep that ideal alive, they treated manners almost like scientific equipment: tools that helped the whole system work.

The strange ritual of the overpolite opening

Letters between scholars often began with long, exaggerated compliments. A writer might call someone he had never met “the most illustrious ornament of our age” or “the light of learning for all nations”.

These formulas were partly sincere, but they were also a way to say: “I recognize your status, I come in peace.” If you wrote too plainly, you could seem rude. If you praised too wildly, you might sound fake, but the middle ground was still very flowery by modern standards.

How to disagree without starting a feud

Serious disagreements were common. People argued about astronomy, theology, ancient texts, medicine and more. Yet direct attack was considered vulgar, at least in theory.

A typical polite disagreement might start with sentences like “With the deepest respect for your learning” or “I submit this merely as a doubt, not a contradiction”. Then would come a careful list of objections, often framed as questions rather than accusations.

Insults wrapped in compliments

Of course, people still insulted each other. They just learned to hide it. A scholar might praise a rival’s “lively imagination” while quietly implying that his evidence was weak. Or he might call a theory “subtle and ingenious”, then add that it “rests on foundations that are, perhaps, less stable than we might wish”.

The result was a strange double language. A letter could sound gentle on the surface while everyone involved understood that it was a sharp attack. Reading between the lines became an essential skill.

Gossip, secrets and the problem of sharing

The Republic of Letters loved to share information, but it also ran on secrets. New discoveries, rare manuscripts and strange specimens were social currency. Who you told, and when, mattered.

There was a strong expectation that you would not publish someone else’s ideas without explicit permission. Breaking this rule could mark you as a thief or “pirate” of learning. Yet leaks still happened, and angry letters about stolen credit travelled almost as widely as the discoveries themselves.

The strange etiquette of showing off modestly

One of the oddest customs was the performance of modesty. Scholars were expected to minimize their own achievements in public while quietly making sure everyone knew about them.

Letters were full of phrases like “this trivial observation” or “these small remarks, hardly worthy of your attention” followed by pages of careful argument. To brag openly was bad form, but if you sounded too uncertain, no one would take your work seriously. The trick was to sound humble while still suggesting importance.

Women at the edges and inside the network

Women faced many barriers to formal education, yet some still became respected figures in the Republic of Letters. They wrote in multiple languages, discussed philosophy, ran salons and hosted gatherings where ideas flowed more freely than in many official institutions.

At the same time, etiquette rules often framed them as “muses” or “ornaments” rather than equal partners. Some women used this expected politeness strategically, playing the role of gracious hostess on paper while quietly building powerful intellectual networks of their own.

What this odd etiquette can teach us today

On the surface, the Republic of Letters looks distant: powdered wigs, Latin sentences, long delays between replies. Yet its problems feel modern. How do you disagree strongly without destroying a relationship? How do you balance self promotion with humility?

Some of their customs seem exaggerated, even ridiculous. But their core idea, that a shared culture of respect can hold a far flung conversation together, still matters. Especially in a world where our own messages travel faster, last longer and can be misunderstood just as easily.

Practical takeaways from an old-fashioned inbox

• Assume long memories: write as if your words might be shared, saved or quoted later.
• Signal respect early: a brief, sincere compliment can soften even sharp criticism.
• Disagree precisely: attack arguments, not the person making them.
• Share credit clearly: name your sources, mentors and collaborators whenever you can.

People in the Republic of Letters built a global conversation out of ink, paper and patience. Their etiquette was imperfect and sometimes hypocritical, but it kept a fragile, scattered community alive. That makes it one of history’s strangest and most instructive experiments in long distance civility.