You might need several required items from our previous guides to complete your Economy Package. Choose the items you need to add below.
Add-on Items for Economy Package
United States History Atlas
If you did Revival to Revolution or Missions to Modern Marvels, you have this item. If not, add it to the Economy Package.
Book of Centuries
If you did World Geography or World History, you have this item. If not, add it to the Economy Package.