diff --git a/common/culture/eras/00_culture_eras.txt b/common/culture/eras/00_culture_eras.txt
new file mode 100644
index 00000000..41e02f93
--- /dev/null
+++ b/common/culture/eras/00_culture_eras.txt
@@ -0,0 +1,213 @@
+
+culture_era_tribal = {
+	year = 0
+}
+
+culture_era_early_medieval = {	
+	year = 2300
+	invalid_for_government = tribal_government
+	
+	culture_modifier = {
+		culture_tradition_max_add = 1
+	}
+
+	custom = more_expensive_court_positions
+	custom = increased_activity_cost
+	
+	##################################################
+	# MAA Upgrades
+
+	# Cultural 
+	## Longbowmen
+	maa_upgrade = {
+		men_at_arms = longbowmen
+		damage = 10
+		toughness = 2
+	}
+
+	# Accolade
+	## Accolade Archers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_archers
+		damage = 6
+	}
+	## Accolade Skirmishers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_skirmishers
+		damage = 6
+	}
+	## Accolade Pikes
+	maa_upgrade = {
+		men_at_arms = accolade_maa_pikes
+		damage = 6
+	}
+	## Accolade Outriders
+	maa_upgrade = {
+		men_at_arms = accolade_maa_outriders
+		pursuit = 6
+	}
+	## Accolade Cameliers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_cameliers
+		pursuit = 6
+	}
+}
+
+culture_era_high_medieval = {
+	year = 2500
+	invalid_for_government = tribal_government
+	
+	culture_modifier = {
+		culture_tradition_max_add = 1
+	}
+	
+	character_modifier = {
+		mercenary_hire_cost_mult = 0.15
+	}
+
+	custom = more_expensive_court_positions
+	custom = increased_activity_cost
+	
+	##################################################
+	# MAA Upgrades
+
+	# Cultural 
+	## Longbowmen
+	maa_upgrade = {
+		men_at_arms = longbowmen
+		damage = 10
+		toughness = 2
+	}
+
+	# Accolade
+	## Accolade Archers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_archers
+		damage = 4
+		toughness = 4
+	}
+	## Accolade Skirmishers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_skirmishers
+		damage = 4
+		toughness = 4
+		pursuit = 4
+		screen = 4
+	}
+	## Accolade Pikes
+	maa_upgrade = {
+		men_at_arms = accolade_maa_pikes
+		damage = 4
+		toughness = 4
+	}
+	## Accolade Outriders
+	maa_upgrade = {
+		men_at_arms = accolade_maa_outriders
+		damage = 4
+		toughness = 4
+		pursuit = 4
+		screen = 4
+	}
+	## Accolade Vanguards
+	maa_upgrade = {
+		men_at_arms = accolade_maa_vanguards
+		damage = 10
+		toughness = 10
+	}
+	## Accolade Lancers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_lancers
+		pursuit = 10
+	}
+	## Accolade Cameliers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_cameliers
+		damage = 4
+		toughness = 4
+		pursuit = 4
+		screen = 4
+	}
+}
+
+culture_era_late_medieval = {
+	year = 2750
+	invalid_for_government = tribal_government
+	
+	culture_modifier = {
+		culture_tradition_max_add = 1
+	}
+
+	character_modifier = {
+		mercenary_hire_cost_mult = 0.15
+	}
+
+	custom = more_expensive_court_positions
+	custom = increased_activity_cost
+	
+
+	##################################################
+	# MAA Upgrades
+
+	# Cultural 
+	## Longbowmen
+	maa_upgrade = {
+		men_at_arms = longbowmen
+		damage = 10
+		toughness = 2
+	}
+
+	# Accolade
+	## Accolade Archers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_archers
+		damage = 10
+		toughness = 10
+	}
+	## Accolade Skirmishers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_skirmishers
+		damage = 6
+		toughness = 6
+		pursuit = 4
+		screen = 4
+	}
+	## Accolade Pikes
+	maa_upgrade = {
+		men_at_arms = accolade_maa_pikes
+		damage = 10
+		toughness = 6
+	}
+	## Accolade Outriders
+	maa_upgrade = {
+		men_at_arms = accolade_maa_outriders
+		damage = 16
+		toughness = 16
+		pursuit = 20
+		screen = 6
+	}
+	## Accolade Vanguards
+	maa_upgrade = {
+		men_at_arms = accolade_maa_vanguards
+		damage = 10
+		toughness = 10
+	}
+	## Accolade Lancers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_lancers
+		screen = 20
+	}
+	## Accolade Crossbowers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_crossbowers
+		damage = 10
+		toughness = 10
+	}
+	## Accolade Cameliers
+	maa_upgrade = {
+		men_at_arms = accolade_maa_cameliers
+		damage = 16
+		toughness = 6
+		pursuit = 20
+		screen = 6
+	}
+}
diff --git a/localization/english/replace/culture/culture_eras_l_english.yml b/localization/english/replace/culture/culture_eras_l_english.yml
new file mode 100644
index 00000000..7e54d567
--- /dev/null
+++ b/localization/english/replace/culture/culture_eras_l_english.yml
@@ -0,0 +1,21 @@
+l_english:
+# l_spanish:
+# l_german:
+# l_french:
+# l_russian:
+# l_simp_chinese:
+# l_korean:
+ #GROUPS
+ culture_group_military:0 "Military"
+ culture_group_civic:0 "Civic"
+ culture_group_regional:1 "Cultural and Regional"
+ culture_group_any:0 "any"
+ #ERAS
+ culture_era_tribal:0 "Antiquarian"
+ culture_era_tribal_desc:0 "WIP."
+ culture_era_early_medieval:0 "Early Interluminaria"
+ culture_era_early_medieval_desc:0 "WIP."
+ culture_era_high_medieval:0 "Late Interluminaria"
+ culture_era_high_medieval_desc:0 "WIP."
+ culture_era_late_medieval:0 "Rekindling"
+ culture_era_late_medieval_desc:0 "WIP."
\ No newline at end of file