Adam Adamandy Kochański
Biography here is a secondary layer, not the spine. The site tells the story of a problem he worked on, not the order of his moves. Below is only what is needed to place the instruments in time — with the points where the scholarship disagrees marked openly.
Timeline
- 1631 — born in the Dobrzyń region. One museum text gives 1637; 1631 is the prevailing version.
- 1652 — Jesuit novitiate in Vilnius, then studies at the Vilnius Academy.
- 1660s–1670s — teaching at European colleges: Florence, Prague, Olomouc, Würzburg, Mainz.
- 1659 — proposal to replace the pendulum with a regulating spring.
- 1664 — Mirabilis chronometrica, book IX of Caspar Schott's Technica curiosa. Some sources give the title as Mirabilia chronometrica.
- 1667 — a watch with a magnetic balance, presented to Ferdinand de' Medici.
- c. 1672 — a spring regulating the balance wheel in pocket watches.
- 1678, 1679 or 1680 — arrival at the court of John III Sobieski. Three different dates appear in the literature.
- c. 1684 — the sundial on the garden front at Wilanów, in correspondence with Hevelius.
- 1685 — Observationes cyclometricae, Acta Eruditorum.
- 1691–1700 — correspondence with Leibniz resumed after a gap of some twenty years.
- 1700 — died on 17 May at Teplice in Bohemia.
What this timeline leaves out
It does not say that Kochański devoted much of his last years to the search for perpetual motion. It does not say that the magnetic-balance watch was a dead end and that the marine clock was never built. The failures belong to this biography and are listed here deliberately — a site without them would be boasting, not an account of work.