Here is the full list of all 100 The Hundred Year Kingdom achievements.
Cleared beginning of World of Vegetation
Collected 10,000 food points
Collected 10,000 production points
Raised Amaterasu to level 2
Built first legacy
Observed beginnings of culture
Built the first structure in the world
Cleared beginning of World of Culture
Cleared beginning of World of Water
Cleared beginning of World of Mountains and Dense Forest
Cleared beginning of Empty World
Cleared beginning of Fantasy World
Cleared beginning of Goddess's World
Cleared beginning of World of Plains
Cleared beginning of World of Learning
Cleared beginning of World of Wastelands
Cleared beginning of World of Nature
Collected 1 million food points
Collected 1 million production points
Collected 1 million culture points
Created 100 cultural icons
Built 25 legacies
Built 100 legacies
Built 200 legacies
Built 1000 Legacies
Build 10,000 legacies
Achieved S class with Arianrhod
Achieved S class with Amaterasu
Achieved S class with Gaia
Achieved S class with Freya
Achieved S class with Inanna
more than 10 times play
Cleared A class
Cleared S class
Cleared A class 50 times
Cleared S class 50 times
Collected 10,000 culture points
Collected 100,000 food points
Collected 100,000 production points
Collected 100,000 culture points
Collected 10 million food points
Collected 10 million production points
Collected 10 million culture points
Collected 100 million food points
Collected 100 million production points
Collected 100 million culture points
Raised Arianrhod to level 2
Raised Arianrhod to level 5
Raised Arianrhod to level 10
Raised Arianrhod to level 15
Raised Arianrhod to level 20
Raised Amaterasu to level 5
Raised Amaterasu to level 10
Raised Amaterasu to level 15
Raised Amaterasu to level 20
Raised Gaia to level 2
Raised Gaia to level 5
Raised Gaia to level 10
Raised Gaia to level 15
Raised Gaia to level 20
Raised Freya to Level 2
Raised Freya to level 5
Raised Freya to level 10
Raised Freya to level 15
Raised Freya to level 20
Raised Inanna to level 2
Raised Inanna to level 5
Raised Inanna to level 10
Raised Inanna to level 15
Raised Inanna to level 20
Raised Palace of Westminster to level 5
Raised Palace of Westminster to level 10
Raised Oxford University to level 5
Raised Oxford University to level 10
Raised Stonehenge to level 5
Raised Stonehenge to level 10
Raised Himeiji Castle to level 5
Raised Himeiji Castle to level 10
Raised Hashima Island to level 5
Raised Hashima Island to level 10
Raised Tomioka Silk Mill to level 5
Raised Tomioka Silk Mill to level 10
Raised Colosseum to level 5
Raised Colosseum to level 10
Raised Parthenon to level 5
Raised Parthenon to level 10
Raised Library of Alexandria to level 5
Raised Library of Alexandria to level 10
Raised Cologne Cathedral to level 5
Raised Cologne Cathedral to level 10
Raised Neuschwanstein to level 5
Raised Neuschwanstein to level 10
Raised Runestones to level 5
Raised Runestones to level 10
Raised Ancient City of Damascus to level 5
Raised Ancient City of Damascus to level 10
Raised Petra to level 5
Raised Petra to level 10
Raised Palmyra to level 5
Raised Palmyra to level 10