[QUOTE=NBtarheel_33;320309]I like the idea of including pre-GIMPS discoveries. Will have to investigate how to handle the timeline becoming tens or hundreds of years long, without becoming a million pixels wide. I'm thinking that green is probably a good choice for new prime discoveries, with red being a good choice for "proof that 2^x-1 is M(yy)". [/QUOTE]I was thinking just some of the last ones in the 1980's and 90's.