Originally Posted by Moah
From Wikipedia on Greek Fire:
In its earliest uses it was applied onto enemy forces by firing a burning cloth-wrapped ball, perhaps containing a flask, using a form of light catapult, most probably a sea-borne variant of the Roman light catapult or onager. These were capable of hurling light loads (c. six to nine kilograms—up to twenty pounds) 350-450 meters (approx. four to five hundred yards). Later technological improvements in machining technology enabled the devising of a pump mechanism discharging a stream of burning fluid (flame thrower) at close ranges, devastating wooden ships in naval warfare and also very effective on land as a counter-force suppression weapon used on besieging forces. There are many accounts of the Byzantine Empire driving off attacks on the walls using this devastatingly frightful secret formula.
It wouldn't have been that hard to find youself, take you as long as that snotty post really...