diff --git a/src/components/moderation/ValidationSummary.tsx b/src/components/moderation/ValidationSummary.tsx
index 637a2e2c..b3e076d7 100644
--- a/src/components/moderation/ValidationSummary.tsx
+++ b/src/components/moderation/ValidationSummary.tsx
@@ -31,8 +31,8 @@ export function ValidationSummary({ item, onValidationChange, compact = false }:
       setIsLoading(true);
       try {
         // Type guard for valid entity types
-        type ValidEntityType = 'park' | 'ride' | 'manufacturer' | 'operator' | 'designer' | 'property_owner' | 'ride_model' | 'photo';
-        const validEntityTypes: ValidEntityType[] = ['park', 'ride', 'manufacturer', 'operator', 'designer', 'property_owner', 'ride_model', 'photo'];
+        type ValidEntityType = 'park' | 'ride' | 'manufacturer' | 'operator' | 'designer' | 'property_owner' | 'ride_model' | 'photo' | 'milestone' | 'timeline_event';
+        const validEntityTypes: ValidEntityType[] = ['park', 'ride', 'manufacturer', 'operator', 'designer', 'property_owner', 'ride_model', 'photo', 'milestone', 'timeline_event'];
         
         if (!validEntityTypes.includes(item.item_type as ValidEntityType)) {
           setValidationResult({
diff --git a/src/lib/entityValidationSchemas.ts b/src/lib/entityValidationSchemas.ts
index ad241c28..48172a84 100644
--- a/src/lib/entityValidationSchemas.ts
+++ b/src/lib/entityValidationSchemas.ts
@@ -223,6 +223,7 @@ export const entitySchemas = {
   ride_model: rideModelValidationSchema,
   photo: photoValidationSchema,
   milestone: milestoneValidationSchema,
+  timeline_event: milestoneValidationSchema, // Alias for milestone
 };
 
 // ============================================
diff --git a/src/types/submissions.ts b/src/types/submissions.ts
index 85c7bcdb..9ff33101 100644
--- a/src/types/submissions.ts
+++ b/src/types/submissions.ts
@@ -6,7 +6,9 @@ export type EntityType =
   | 'designer' 
   | 'property_owner'
   | 'photo_edit'
-  | 'photo_delete';
+  | 'photo_delete'
+  | 'milestone'
+  | 'timeline_event';
 
 export interface PhotoSubmission {
   url: string;
diff --git a/supabase/functions/process-selective-approval/validation.ts b/supabase/functions/process-selective-approval/validation.ts
index e847402e..2d627a09 100644
--- a/supabase/functions/process-selective-approval/validation.ts
+++ b/supabase/functions/process-selective-approval/validation.ts
@@ -28,35 +28,45 @@ export function validateEntityDataStrict(
     warnings: []
   };
   
-  // Common validations (blocking)
-  if (!data.name?.trim()) {
-    result.blockingErrors.push('Name is required');
-  }
+  // Skip name/slug validations for timeline events (they use title instead)
+  const isTimelineEvent = entityType === 'milestone' || entityType === 'timeline_event';
   
-  if (!data.slug?.trim()) {
-    result.blockingErrors.push('Slug is required');
-  }
-  
-  if (data.slug && !/^[a-z0-9-]+$/.test(data.slug)) {
-    result.blockingErrors.push('Slug must contain only lowercase letters, numbers, and hyphens');
-  }
-  
-  if (data.name && data.name.length > 200) {
-    result.blockingErrors.push('Name must be less than 200 characters');
-  }
-  
-  if (data.description && data.description.length > 2000) {
-    result.blockingErrors.push('Description must be less than 2000 characters');
-  }
-  
-  // URL validation (warning)
-  if (data.website_url && data.website_url !== '' && !isValidUrl(data.website_url)) {
-    result.warnings.push('Website URL format may be invalid');
-  }
-  
-  // Email validation (warning)
-  if (data.email && data.email !== '' && !isValidEmail(data.email)) {
-    result.warnings.push('Email format may be invalid');
+  // Common validations (blocking) - only for entities with name/slug
+  if (!isTimelineEvent) {
+    if (!data.name?.trim()) {
+      result.blockingErrors.push('Name is required');
+    }
+    
+    if (!data.slug?.trim()) {
+      result.blockingErrors.push('Slug is required');
+    }
+    
+    if (data.slug && !/^[a-z0-9-]+$/.test(data.slug)) {
+      result.blockingErrors.push('Slug must contain only lowercase letters, numbers, and hyphens');
+    }
+    
+    if (data.name && data.name.length > 200) {
+      result.blockingErrors.push('Name must be less than 200 characters');
+    }
+    
+    if (data.description && data.description.length > 2000) {
+      result.blockingErrors.push('Description must be less than 2000 characters');
+    }
+    
+    // URL validation (warning)
+    if (data.website_url && data.website_url !== '' && !isValidUrl(data.website_url)) {
+      result.warnings.push('Website URL format may be invalid');
+    }
+    
+    // Email validation (warning)
+    if (data.email && data.email !== '' && !isValidEmail(data.email)) {
+      result.warnings.push('Email format may be invalid');
+    }
+  } else {
+    // Validations specific to timeline events
+    if (data.description && data.description.length > 2000) {
+      result.blockingErrors.push('Description must be less than 2000 characters');
+    }
   }
   
   // Entity-specific validations
@@ -145,6 +155,28 @@ export function validateEntityDataStrict(
         result.blockingErrors.push('Caption must be less than 500 characters');
       }
       break;
+      
+    case 'milestone':
+    case 'timeline_event':
+      if (!data.title?.trim()) {
+        result.blockingErrors.push('Event title is required');
+      }
+      if (data.title && data.title.length > 200) {
+        result.blockingErrors.push('Title must be less than 200 characters');
+      }
+      if (!data.event_type) {
+        result.blockingErrors.push('Event type is required');
+      }
+      if (!data.event_date) {
+        result.blockingErrors.push('Event date is required');
+      }
+      if (!data.entity_type) {
+        result.blockingErrors.push('Entity type is required');
+      }
+      if (!data.entity_id) {
+        result.blockingErrors.push('Entity ID is required');
+      }
+      break;
   }
   
   result.valid = result.blockingErrors.length === 0;
@@ -171,27 +203,37 @@ function isValidEmail(email: string): boolean {
 export function validateEntityData(entityType: string, data: any): ValidationResult {
   const errors: string[] = [];
   
-  // Common validations for all entities
-  if (!data.name || data.name.trim().length === 0) {
-    errors.push('Name is required');
-  }
-  if (!data.slug || data.slug.trim().length === 0) {
-    errors.push('Slug is required');
-  }
-  if (data.slug && !/^[a-z0-9-]+$/.test(data.slug)) {
-    errors.push('Slug must contain only lowercase letters, numbers, and hyphens');
-  }
-  if (data.name && data.name.length > 200) {
-    errors.push('Name must be less than 200 characters');
-  }
-  if (data.description && data.description.length > 2000) {
-    errors.push('Description must be less than 2000 characters');
-  }
-  if (data.website_url && data.website_url !== '' && !data.website_url.startsWith('http')) {
-    errors.push('Website URL must start with http:// or https://');
-  }
-  if (data.email && data.email !== '' && !data.email.includes('@')) {
-    errors.push('Invalid email format');
+  // Skip name/slug validations for timeline events
+  const isTimelineEvent = entityType === 'milestone' || entityType === 'timeline_event';
+  
+  // Common validations for entities with name/slug
+  if (!isTimelineEvent) {
+    if (!data.name || data.name.trim().length === 0) {
+      errors.push('Name is required');
+    }
+    if (!data.slug || data.slug.trim().length === 0) {
+      errors.push('Slug is required');
+    }
+    if (data.slug && !/^[a-z0-9-]+$/.test(data.slug)) {
+      errors.push('Slug must contain only lowercase letters, numbers, and hyphens');
+    }
+    if (data.name && data.name.length > 200) {
+      errors.push('Name must be less than 200 characters');
+    }
+    if (data.description && data.description.length > 2000) {
+      errors.push('Description must be less than 2000 characters');
+    }
+    if (data.website_url && data.website_url !== '' && !data.website_url.startsWith('http')) {
+      errors.push('Website URL must start with http:// or https://');
+    }
+    if (data.email && data.email !== '' && !data.email.includes('@')) {
+      errors.push('Invalid email format');
+    }
+  } else {
+    // Validations for timeline events
+    if (data.description && data.description.length > 2000) {
+      errors.push('Description must be less than 2000 characters');
+    }
   }
   
   // Entity-specific validations
@@ -256,6 +298,20 @@ export function validateEntityData(entityType: string, data: any): ValidationRes
         errors.push('Caption must be less than 500 characters');
       }
       break;
+      
+    case 'milestone':
+    case 'timeline_event':
+      if (!data.title || data.title.trim().length === 0) {
+        errors.push('Event title is required');
+      }
+      if (data.title && data.title.length > 200) {
+        errors.push('Title must be less than 200 characters');
+      }
+      if (!data.event_type) errors.push('Event type is required');
+      if (!data.event_date) errors.push('Event date is required');
+      if (!data.entity_type) errors.push('Entity type is required');
+      if (!data.entity_id) errors.push('Entity ID is required');
+      break;
   }
   
   return {