A Fountain Pen for 5000 Years
Pens Sealed in a Time Capsule
There is no doubt that fountain pens will still exist thousands of years from now. This is guaranteed by the fact that this important achievement of our civilization was not left out of the time capsules placed in the first half of the 20th century. But what will the researcher of the future find in this “Noah’s Ark” of objects — if the well-hidden messages can be accessed at all?

I deliberately wrote “researcher,” because it is not even certain that these hidden and atomic-proof capsules will be opened by humans — assuming the necessary tools will exist at all. Of course, it is also possible that no one will open them, and in 4 billion years, like everything on Earth, they will end up in the belly of the Sun. But let’s not jump that far ahead in time — only a few thousand years. Two important time capsules will be discussed, both containing fountain pens. The following room will greet curious eyes in the year 8113, as the door of the room may only be opened then; it was ceremonially sealed on May 25, 1940, in the building of Oglethorpe University.

The other time capsule — the Westinghouse capsule pair — was lowered into the ground on September 23, 1938, and October 16, 1965. The designated opening (excavation) date is the year 6939. The time capsule lowered in 1938 contained 35 everyday objects: a glass container holding 2 pen cases, 3 pencils, 1 calculator with instruction manual, 1 set of colored pencils, 1 plastic ruler, and a Waterman fountain pen and pencil set. In addition, 75 types of materials — textiles, metals, plastics, seeds — were placed inside the capsule. Contemporary modern literature, fine art, and news were also included on microfilm. This so-called “Micro-File” contains more than 10 million words and over a thousand images, to be viewed with a small microscope.
The capsule’s inventory list is now only available on the web.archive.org site, meaning the process of forgetting has already begun in earnest — but the physical reminder will surely remain, as a granite block marks the capsule’s location for posterity:

The cover image shows this granite block in a more worn state, when the people of the future discover it in 6939 — according to AI, in rather battered condition. Returning to the past: typically, the 1939 and 1940 capsule/room contained Waterman fountain pens and mechanical pencils, while the 1964 capsule included a Parker ballpoint pen. Unfortunately, I was unable to determine the exact fountain pen model, so I can only speculate. If one plans for the long term — say, 5000 years — one should primarily think in granite, but I am not aware of any pen made of granite. Crystal, however, does exist:

What Kind of Fountain Pen Could Survive 5000 Years?
An average 20th-century pen was made of metal, celluloid, ebonite, or synthetic resin — materials that can become brittle and crack within a few centuries.
If we were designing for 5000 years, the ideal materials would be gold, platinum, or titanium due to their corrosion resistance. Secondly, ceramics or sapphire could be suitable because of their mechanical stability and chemical inertness. Silicone or fluorocarbon seals can be relatively durable and resistant to heat and chemical effects. Together, these materials could prevent the complete disintegration of the pen body and filling mechanism.
The Ink Problem
Ink is far more vulnerable: water, solvents, and dyes all degrade it. Organic dyes break down within a few hundred years. Metal-ion inks (e.g., iron gall) are more stable but may crystallize. Nanoparticle pigment ink (e.g., carbon-based) could theoretically survive a few centuries, but it would certainly not retain its viscosity: the carrier medium would evaporate or polymerize. According to our current knowledge, there is no ink that could remain in liquid form for 5000 years. At best, it might survive as a solid pigment that could later be reprocessed with a solvent.
The Environment
Time is the greatest enemy: moisture, oxygen, temperature fluctuations. A pen or pencil is best sealed in an airtight capsule filled with noble gas (argon, neon) to prevent both oxidation and biological degradation. A temperature-stable environment is also important: deep underground, where fluctuations are minimal. For mechanical protection, a robust container is required to withstand shock and pressure. With all this in mind, the capsule was hidden deep underground.

The Sure Survivor
Graphite (actually a mixture of graphite and clay) is stable for virtually unlimited time. Over five thousand years it does not decompose; at most it may crumble due to tiny cracks, but chemically it is almost eternal. Almost. Then in a few billion years, a black hole will surely interfere with eternity.
Szűcs Tamás / 2026

