surprising (to me) history of the Molotov cocktail

[lauradi7dw]

I was wondering about the first use of a bottle with an accelerant and a wick, and how it became so widespread. The first documented use was 1922 by the IRA, but it was more heavily used during the Spanish Civil War, and then in Finland in 1940 an entire distillery switched to making them, in preparation for the Russian invasion.
https://www.britannica.com/technology/Molotov-cocktail