Browse history From year (and earlier): From month (and earlier): all January February March April May June July August September October November December Deleted only For any version listed below, click on its date to view it. For more help, see Help:Page history. (cur) = difference from current version, (prev) = difference from preceding version, m = minor edit, → = section edit, ← = automatic edit summary (cur | prev) 14:33, October 1, 2015 Ultrasheep (wall | contribs) . . (526 bytes) (+24) . . (Adding categories) (undo) (cur | prev) 20:37, January 24, 2015 NamelessPC (wall | contribs) . . (502 bytes) (+71) . . (undo) (cur | prev) 15:49, January 22, 2015 NamelessPC (wall | contribs) . . (431 bytes) (-37) . . (undo) (cur | prev) 23:34, May 25, 2014 RvW-Kong (wall | contribs) . . (468 bytes) (+468) . . (Initial version) Retrieved from "https://emp-game.fandom.com/wiki/Production_Optimization" Community content is available under CC-BY-SA unless otherwise noted.