TIL Luigi Galleani, an anarchist public speaker born in 1861, publicly distributed an instructional bomb-making manual and built a following that carried out the 1919 anarchist bombings in the United States.

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The first anarchists cookbook?

Some parts of the article i found interesting:

By all accounts, Galleani was an extremely effective speaker and advocate of his policy of revolutionary violence. Carlo Buda, the brother of Galleanist bombmaker Mario Buda, said of him, "You heard Galleani speak, and you were ready to shoot the first policeman you saw".

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Galleani was the founder and editor of the anarchist newsletter Cronaca Sovversiva (Subversive Chronicle) [...] At one point the newsletter claimed 5,000 subscribers. [...] It frequently published a list of addresses and personal details of businessmen and others identified as "capitalist spies", strikebreakers, and assorted "enemies of the people".

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In later issues, Cronaca Sovversiva included a small advertisement for a booklet entitled La Salute è in voi! (Health is in You!), sold for 25 cents and described as a must-have for any proletarian family [...] Health Is In You! was an explicit bomb-making manual, in which Galleani supplied to his readers the chemical formula for making nitroglycerine [...]

I heard about this man in a podcast called Dan Carlin's Hardcore history (show 40 "Radical Thoughts"), which has been blowing my mind the past few weeks. I highly recommend it.