diff --git a/Legality/Analysis.cs b/Legality/Analysis.cs
index 84f4cd79f..2ca01ad1b 100644
--- a/Legality/Analysis.cs
+++ b/Legality/Analysis.cs
@@ -10,8 +10,8 @@ public partial class LegalityAnalysis
         private object EncounterMatch;
         private List<WC6> CardMatch;
         private Type EncounterType;
-        private LegalityCheck ECPID, Nickname, IDs, IVs, EVs, Encounter, Level, Ribbons, Ability, Ball, HandlerMemories, Form, Misc;
-        private LegalityCheck[] Checks => new[] { Encounter, Level, Form, Ball, Ability, Ribbons, ECPID, Nickname, IVs, EVs, IDs, HandlerMemories, Misc };
+        private LegalityCheck ECPID, Nickname, IDs, IVs, EVs, Encounter, Level, Ribbons, Ability, Ball, History, OTMemory, HTMemory, Form, Misc;
+        private LegalityCheck[] Checks => new[] { Encounter, Level, Form, Ball, Ability, Ribbons, ECPID, Nickname, IVs, EVs, IDs, History, OTMemory, HTMemory, Misc };
 
         public bool Valid = true;
         public bool SecondaryChecked;
@@ -56,7 +56,9 @@ private void updateChecks()
             Ribbons = verifyRibbons();
             Ability = verifyAbility();
             Ball = verifyBall();
-            HandlerMemories = verifyHandlerMemories();
+            History = verifyHistory();
+            OTMemory = verifyOTMemory();
+            HTMemory = verifyHTMemory();
             Form = verifyForm();
             Misc = verifyMisc();
             SecondaryChecked = true;
diff --git a/Legality/Checks.cs b/Legality/Checks.cs
index 6474ee733..ed248bbc6 100644
--- a/Legality/Checks.cs
+++ b/Legality/Checks.cs
@@ -560,7 +560,7 @@ private LegalityCheck verifyBall()
 
             return new LegalityCheck(Severity.Invalid, "No ball check satisfied, assuming illegal.");
         }
-        private LegalityCheck verifyHandlerMemories()
+        private LegalityCheck verifyHistory()
         {
             if (!Encounter.Valid)
                 return new LegalityCheck(Severity.Valid, "Skipped Memory check due to other check being invalid.");
@@ -628,6 +628,48 @@ private LegalityCheck verifyHandlerMemories()
 
             return new LegalityCheck(Severity.Valid, "History is valid.");
         }
+        private LegalityCheck verifyOTMemory()
+        {
+            if (!History.Valid)
+                return new LegalityCheck(Severity.Valid, "Skipped OT Memory check as History is not valid.");
+
+            if (EncounterType == typeof(EncounterTrade))
+            {
+                return new LegalityCheck(Severity.Valid, "OT Memory (Ingame Trade) is valid.");
+            }
+            if (EncounterType == typeof(WC6))
+            {
+                if (pk6.OT_Memory != 0)
+                    return new LegalityCheck(Severity.Invalid, "Event Pokémon should not have an OT memory.");
+
+                return new LegalityCheck(Severity.Valid, "OT Memory (Event) is valid.");
+            }
+            switch (pk6.OT_Memory)
+            {
+                case 4: // {0} became {1}’s friend when it arrived via Link Trade at... {2}. {4} that {3}.
+                    return new LegalityCheck(Severity.Invalid, "OT Memory: Link Trade is not a valid first memory.");
+            }
+            if (pk6.XY && Legal.Memory_NotXY.Contains(pk6.OT_Memory))
+                return new LegalityCheck(Severity.Invalid, "OT Memory: OR/AS exclusive memory on X/Y origin.");
+            if (pk6.AO && Legal.Memory_NotAO.Contains(pk6.OT_Memory))
+                return new LegalityCheck(Severity.Invalid, "OT Memory: X/Y exclusive memory on OR/AS origin.");
+
+            return new LegalityCheck(Severity.Valid, "OT Memory is valid.");
+        }
+        private LegalityCheck verifyHTMemory()
+        {
+            if (!History.Valid)
+                return new LegalityCheck(Severity.Valid, "Skipped OT Memory check as History is not valid.");
+
+            switch (pk6.HT_Memory)
+            {
+                case 1: // {0} met {1} at... {2}. {1} threw a Poké Ball at it, and they started to travel together. {4} that {3}.
+                    return new LegalityCheck(Severity.Invalid, "HT Memory: Handling Trainer did not capture this.");
+                case 2: // {0} hatched from an Egg and saw {1} for the first time at... {2}. {4} that {3}.
+                    return new LegalityCheck(Severity.Invalid, "HT Memory: Handling Trainer did not hatch this.");
+            }
+            return new LegalityCheck(Severity.Valid, "HT Memory is valid.");
+        }
         private LegalityCheck verifyForm()
         {
             if (!Encounter.Valid)
diff --git a/Legality/Tables.cs b/Legality/Tables.cs
index 62b0e2428..d087e51cc 100644
--- a/Legality/Tables.cs
+++ b/Legality/Tables.cs
@@ -870,5 +870,26 @@ public static partial class Legal
             268, 269, // Cascoon Dustox
         };
         #endregion
+        #region Memory Table
+        internal static readonly int[] Memory_NotXY =
+        {
+            61, // {0} looked down at the world from a tall tower where it went with {1}. {4} that {3}.
+            65, // {0} was with {1} when (he/she) built a Secret Base. {4} that {3}.
+            66, // {0} participated in a contest with {1} and impressed many people. {4} that {3}.
+            67, // {0} participated in a contest with {1} and won the title. {4} that {3}.
+            68, // {0} soared through the sky with {1} and went to many different places. {4} that {3}.
+            69, // {1} asked {0} to dive. Down it went, deep into the ocean, to explore the bottom of the sea. {4} that {3}.
+        };
+        internal static readonly int[] Memory_NotAO =
+        {
+            5,  // {0} went to a Pokémon Center with {1} to buy {2}. {4} that {3}.
+            11, // {0} went clothes shopping with {1}. {4} that {3}.
+            43, // {0} was impressed by the speed of the train it took with {1}. {4} that {3}.
+            44, // {0} encountered {2} with {1} using the Poké Radar. {4} that {3}.
+            56, // {0} was with {1} when (he/she) went to a boutique and tried on clothes, but (he/she) left the boutique without buying anything. {4} that {3}.
+            57, // {0} went to a nice restaurant with {1} and ate until it got totally full. {4} that {3}.
+            62, // {0} saw itself in a mirror in a mirror cave that it went to with {1}. {4} that {3}.
+        };
+        #endregion
     }
 }