The Civilopedia should be a complete compendium, with history and strategy entries for every single tech, unit, building, terrain, resource, improvement, promotion, spell, ability, civilization, leader, trait, religion, civic, and ritual. The Civilopedia included with Ashes of Erebus is lacking a considerable number of entries - a rough estimate puts that value at 1000 missing entries across all categories, to be confirmed once the whole Civilopedia has been gone through with a finetooth comb. I've made a start with collating the missing entries, but there is so much more work to be done with not only locating the missing entires but also filling them in: All categories marked as TBC as ones where I have yet to investigate which entries are in need of updating. All entries in the quotes above are subject to revision, as entries newly discovered to be missing will be included in there and entries that get filled in will be taken off the list. Given the size of the task, all help will be accepted and in fact requested, for both collating and updating entries. #1/1/17 - Updated to include missing Rituals history entries; will toothcomb the strategy entries for them at a later date. Updated to include missing Resource history entries; again will need to check for strategy entries. #16/1/17 - Updated to include missing Civic history and strategy entries, though I'm not certain the latter are needed. #21/1/17 - Updated with PPQ Purple's excellent effort. Missing entries for leaders, civilisations, and traits have been added, for it should be noted that virtually all civs have decent lore entries needing nothing more than the brief version for the startup popup.