although credit must be given to jim for his post almost scanning, he has the origins of the 99 quite wrong. During the second world war, what we now know as 99 flakes were carried in special refridgerated holsters by commandos on dangerous missions in occupied territory. The only difference between their 99 and our modern cousin being that the war issue chocolate flake carried a heavy dose of cyanide. In the event of capture by the enemy, the commandos would consume the ice cream as quickly as possible through hurried licking. Having enjoyed their last meal as much as possible under the circumstances, the commandos would wish each other 'nighty-night' and eat the flake. After the war, the game of 'nighty-night' (where one team played british commandos and would have to infiltrate a well guarded german facility - the toilet block for example) became a popular game in British playgrounds. Rationing meant that twigs and sticks were usually eaten in place of the flake. When commercial chocolate production finally began again in the UK in the ealy 60's, the large ice cream companies were quick to capitalise on the playground game that by then had evolved into 'ninety-nine' by the inability of small children to pronounce anything correctly.