False - the substance you may be thinking about is/was called Greek Fire, an incendiary weapon developed in about 672. Such flaming weapons were used for centuries prior to the invention of Greek Fire. At the siege of Delium 424BC 'a long tube on wheels blew fire forward using bellows'. It can be argued that Greek Fire was an early form of gunpowder as the chief ingredient was saltpeter. This came from an early description that on the discharge of the weapon it sounded like thunder which was accompanied by lots of smoke.
True
False
false
false
false
False.
True
True
True.
true
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