It oughta be said that in the 1880s and 1890s the Europeans and particular the Austrians and Hungarians were leading the way in self loading pistol design.
In the 1890s the Austrian Archduke held annual pistol trials where anyone who was anyone showed up and tried out their designs. Frommer, Borchardt, Schwarzlose, Browning, the Mausers, Bergmann, Mannlicher, Luger and many others attended. Would have been a thing to see.
Strikers were first employed in rifles. Most developments in pistols trickle down from rifles.
Striker fired guns were a part of the mix (hammer and bolt being the others) but no special status or mention of them was made.
I looked through the indexes of Ezell's "Handguns of the World", Smith's "Pistols and Revolvers", Boothroyd's "The Handgun", Smith's "Small Arms of the World" and Pollards "History of Firearms" for references to striker fired pistols or any references to strikers. Only Ezell has a spot in the index and he mentions them first in connection to the early designs for what became the Hi-Power.
In the text of each book strikers are mentioned as part of the designs from the beginning of rifles and handguns but they have no spot in the indexes. This is not a mistake or oversight. Strikers and hammers have been a feature of handgun design but not an important enough one on their own to merit separate references in the indexes.
Until about 4 or 5 years ago there were no "striker vs. hammer" discussions.
Same is true of old gun magazines and books. I can't recall ever reading a single article debating the merits of one vs. the other. Certainly beyond 5 years ago or less. Plenty of debates on sa vs da/sa vs dao, 1911 vs. M9, 1911 vs. Glock, etc. But till a few years ago no debate on striker vs hammer. Zero discussion on which a shooter preferred. It's a very recent discussion.
I'm not sure why that is but it certainly is.
When Glock came along it was that it had a polymer frame and the trigger mechanism that were discussed. That it had a striker was not new (the H&K P7 was around) and not it's most important feature.
At any rate strikers have been around for awhile.
tipoc