diff --git a/android/assets/jsons/Civ V - Vanilla/Buildings.json b/android/assets/jsons/Civ V - Vanilla/Buildings.json
index bf4aa09559..1a246d6a0d 100644
--- a/android/assets/jsons/Civ V - Vanilla/Buildings.json	
+++ b/android/assets/jsons/Civ V - Vanilla/Buildings.json	
@@ -281,6 +281,7 @@
 		"replaces": "Temple",
 		"uniqueTo": "Songhai",
 		"maintenance": 0,
+		"specialistSlots": {"culture": 1},
 		"hurryCostModifier": 25,
 		"culture": 4,
 		"requiredBuilding": "Monument",
@@ -403,7 +404,7 @@
 		"culture": 1,
 		"greatPersonPoints": {"culture": 1},
 		"isWonder": true,
-		"uniques": ["+[33]% great person generation in all cities"],
+		"uniques": ["+[25]% great person generation in all cities"],
 		"requiredTech": "Theology",
 		"quote": "'For it soars to a height to match the sky, and as if surging up from among the other buildings it stands on high and looks down upon the remainder of the city, adorning it, because it is a part of it, but glorying in its own beauty'  - Procopius, De Aedificis"
 	},
@@ -451,7 +452,7 @@
 		"name": "Longhouse",
 		"replaces": "Workshop",
 		"uniqueTo": "Iroquois",
-		"cost": 140,
+		"cost": 100,
 		"maintenance": 2,
 		"production": 2,
 		"specialistSlots": {"production": 1},
@@ -505,7 +506,6 @@
 		"science": 3,
 		"culture": 1,
 		"isNationalWonder": true,
-		"percentStatBonus": {"science": 50},
 		"requiredBuildingInAllCities": "University",
 		"uniques": ["Free Technology", "Cost increases by [30] per owned city"],
 		"requiredTech": "Education"
@@ -622,7 +622,7 @@
 		"name": "Satrap's Court",
 		"replaces": "Bank",
 		"uniqueTo": "Persia",	
-		"gold": 3,
+		"gold": 2,
 		"specialistSlots": {"gold": 1},
 		"happiness": 2,
 		"hurryCostModifier": 15,
@@ -742,8 +742,7 @@
 		"specialistSlots": {"production": 1},
 		"hurryCostModifier": 25,
 		"maintenance": 2,
-		"percentStatBonus": {"production": 10},
-		"uniques": ["Must not be on [Hill]"],
+		"uniques": ["Must not be on [Hill]", "+[10]% Production when constructing [Buildings]"],
 		"requiredTech": "Economics"
 	},
 	
@@ -904,7 +903,7 @@
 	{
 		"name": "Kremlin",
 		"culture": 3,
-		"cityHealth": 12,
+		"cityStrength": 12,
 		"isWonder": true,
 		"uniques": ["Defensive buildings in all cities are 25% more effective"],
 		"requiredTech": "Railroad",
diff --git a/android/assets/jsons/Civ V - Vanilla/Techs.json b/android/assets/jsons/Civ V - Vanilla/Techs.json
index 88f69eddf2..d767daada4 100644
--- a/android/assets/jsons/Civ V - Vanilla/Techs.json	
+++ b/android/assets/jsons/Civ V - Vanilla/Techs.json	
@@ -563,6 +563,7 @@
 				"name": "Satellites",
 				"row": 5,
 				"prerequisites": ["Nuclear Fission","Rocketry"],
+				"uniques": ["Reveals the entire map"], 
 				"quote": "'Now, somehow, in some new way, the sky seemed almost alien.' - Lyndon B. Johnson"
 			},
 			{
diff --git a/android/assets/jsons/Civ V - Vanilla/TileImprovements.json b/android/assets/jsons/Civ V - Vanilla/TileImprovements.json
index 10133f40c8..000cf1b59c 100644
--- a/android/assets/jsons/Civ V - Vanilla/TileImprovements.json	
+++ b/android/assets/jsons/Civ V - Vanilla/TileImprovements.json	
@@ -122,7 +122,7 @@
 		"name": "Remove Marsh",
 		"turnsToBuild": 6,
 		"terrainsCanBeBuiltOn": ["Marsh"],
-		"techRequired": "Bronze Working",
+		"techRequired": "Masonry",
 		"uniques": ["Can be built outside your borders"]
 	},
 
diff --git a/core/src/com/unciv/logic/civilization/TechManager.kt b/core/src/com/unciv/logic/civilization/TechManager.kt
index d255cb20a2..fbde51e421 100644
--- a/core/src/com/unciv/logic/civilization/TechManager.kt
+++ b/core/src/com/unciv/logic/civilization/TechManager.kt
@@ -5,6 +5,8 @@ import com.badlogic.gdx.graphics.Color
 import com.unciv.Constants
 import com.unciv.logic.map.MapSize
 import com.unciv.logic.map.RoadStatus
+import com.unciv.models.ruleset.Unique
+import com.unciv.models.ruleset.UniqueTriggerActivation
 import com.unciv.models.ruleset.tech.Technology
 import com.unciv.ui.utils.withItem
 import java.util.*
@@ -223,8 +225,10 @@ class TechManager {
         if (!newTech.isContinuallyResearchable())
             techsToResearch.remove(techName)
         researchedTechnologies = researchedTechnologies.withItem(newTech)
-        for (unique in newTech.uniques)
+        for (unique in newTech.uniques) {
             researchedTechUniques = researchedTechUniques.withItem(unique)
+            UniqueTriggerActivation.triggerCivwideUnique(Unique(unique), civInfo)
+        }
         updateTransientBooleans()
 
         civInfo.addNotification("Research of [$techName] has completed!", Color.BLUE, TechAction(techName))
diff --git a/core/src/com/unciv/models/ruleset/Unique.kt b/core/src/com/unciv/models/ruleset/Unique.kt
index 4121c16c32..5a6378c99b 100644
--- a/core/src/com/unciv/models/ruleset/Unique.kt
+++ b/core/src/com/unciv/models/ruleset/Unique.kt
@@ -25,7 +25,7 @@ class UniqueMap:HashMap<String, ArrayList<Unique>>() {
     fun getAllUniques() = this.asSequence().flatMap { it.value.asSequence() }
 }
 
-// Buildings and policies both have 'triggered' effects, and so may Techs in the future.
+// Buildings, techs and policies can have 'triggered' effects
 object UniqueTriggerActivation {
     fun triggerCivwideUnique(unique: Unique, civInfo: CivilizationInfo) {
         when (unique.placeholderText) {
@@ -65,6 +65,8 @@ object UniqueTriggerActivation {
 
             "Quantity of strategic resources produced by the empire increased by 100%" -> civInfo.updateDetailedCivResources()
             "+20% attack bonus to all Military Units for 30 turns" -> civInfo.policies.autocracyCompletedTurns = 30
+
+            "Reveals the entire map" -> civInfo.exploredTiles.addAll(civInfo.gameInfo.tileMap.values.asSequence().map { it.position })
         }
     }