- When you sell or exchange Articles of Agreement, you do not retain a copy;
- Articles disappear after you discover the Agreement they were required for;
- If you use the "Sell All Articles" option at the Ephorate, you irreversibly sell all your available Articles of Agreement;
- If you make an offer to exchange an Article of Agreement, it becomes unavailable for 3 days. In order to cancel the offer, go to the Port - "Galleys" tab, and select the "Delete" option in the "Loaded Galleys" section.
After a certain point in the game, to unlock new Units, for instance special Roman Warrior Units, you need to discover the Agreements that require unique Articles of Agreement that can be purchased only with GPs. These Articles of Agreement can be purchased at the Black Market, "GPs" section.