The Earth Gift Ceremony is a technology in Age of Empires III: The WarChiefs, available at the Plantation for Native Americans.

With this technology, Villagers gather coin 20% faster from both mines and plantations. It's therefore important for Native Americans to build a plantation somewhat early, even if they're still gathering from mines.

Plantation Technologies
Bookkeeping | Homesteading | Refineries | Earth Ceremony | Earth Gift Ceremony | Excessive Tribute