The Dollar The letters on the base of the Illuminati pyramid stand for certain numbers. And all those numbers when added up equal 1776, the year the Illuminati formed.<br>More than one method exists for arriving at 1776. However, there is only one way to arrive at the following sequence. The Babylonian numbering system was used by the Masonic designers of the Seal. That numbering system was not based on ten, but on six. with 1776formedilluminatilettersnumberspyramidstandyear