Great research find!
Although the chemical compounds were discovered over 100 years ago and “blackbrush” existed long before, the assertion there was any “speed” abuse or addiction prior to 100 years ago is factually missing. Cocain was in use over 100 years ago, but not widely as “cocain” powder or freebase, rather as as minor ingredient in things like soft drinks and of course coca leaves and coca tea in the Andes. Crack cocain is very new, maybe within the last 30 years.
Well, cocaine was available over the counter at pharmacies as part of toothache cures and such. This is similar to how pure alcohol is rarely ingested today. “Freebase” only exists because of the War on Drugs.