In 1926, the article titled “On a certain minimal problem”“On a certain minimal problem” was published. Nobody could guess what it was about, from the title alone. [0]
Nowadays, one may expect something more descriptive, such as "Workspace Augmentation of Photon Impingement Through Impurities Removal" ;) [1]"Workspace Augmentation of Photon Impingement Through Impurities Removal".
I'd be interested when and why did the titles change, from the allusive style of the early 20th century, to the descriptive titles of today.
Was it a gradual change? Was it prompted by some notable event or influence? Was there a period when journal articles (or "letters" as it was then) did not have titles?
[0] https://www.math.uni-bielefeld.de/documenta/vol-ismp/30_nesetril-nesetrilova.pdf