Open Questions

Open Patenting of the Sewing Machine

Why It Is Open At least three inventors have a real claim, by different tests. Thomas Saint patented a design in England in 1790, but it was never built and stayed unknown until 1874. Barthelemy Thimonnier patented a working machine in France in 1830 and ran a small factory of them until rioting tailors, fearing unemployment, destroyed it in 1831. Elias Howe patented a lockstitch machine in the United States in 1846, sixteen years after Thimonnier, but his patent was the one that survived litigation and anchored the industry America and much of the world adopted. Whether invention means the first patent, the first working machine, or the first patent that mattered commercially is a genuine, unsettled question, not a gap in the record.

What Would Settle It A single, agreed test for what invention means here: patent priority, working-machine priority, or commercial consequence. Historians of technology have not converged on one, and probably will not, since the three tests answer different questions.

Expertise Needed History of technology

Question posed in Elias Howe (Wikipedia), en.wikipedia.org/wiki/Elias_Howe.

Open The First World Chess Championship

Why It Is Open Wilhelm Steinitz beat Adolf Anderssen in 1866 and later called himself world champion from that year on, but he made no known reference to a world championship at the time, and no formal title or agreed stakes were on the table. The 1886 match against Zukertort, by contrast, was played for an explicitly agreed title. Most historians now treat 1886 as the first official championship, but Steinitz's own later claim to 1866 was never fully retracted by the chess world, and some historians still credit an unbroken reign from that year.

What Would Settle It An agreed definition of what makes a championship official: a formally agreed title and stakes (which favors 1886), or a sustained, uncontested claim to being the strongest player (which could favor 1866). No governing body existed in either year to rule on the question retroactively.

Expertise Needed History of chess

Question posed in World Chess Championship 1886 (Wikipedia), en.wikipedia.org/wiki/World_Chess_Championship_1886.

Open Chess

Why It Is Open The conventional account derives chess from chaturanga in Gupta-era northern India around the sixth to seventh century CE, but the earliest physical pieces, the earliest unambiguous textual references and the relationships among chaturanga, the Chinese game xiangqi and Central Asian play are all thin enough that scholars have seriously proposed Indian, Chinese and Central Asian origins, and the debate has run for more than a century without a decisive find.

What Would Settle It Securely dated early game pieces or texts that tie a recognizable ancestor of chess to one region and period, or philological work that settles the direction of borrowing among the early chess-family games.

Expertise Needed Archaeology, Philology, Board game history

Question posed in Chess (Wikipedia), History section; predecessors and origin theories.