diff --git a/extension/src/vault/vault.ts b/extension/src/vault/vault.ts
index 4ef0196..3de3b56 100644
--- a/extension/src/vault/vault.ts
+++ b/extension/src/vault/vault.ts
@@ -12,7 +12,7 @@ import { registerHost } from '../shared/state';
 import { lookupErrorCopy, type ErrorCta } from '../shared/error-copy';
 import { relativeTime } from '../shared/relative-time';
 import {
-  GLYPH_TRASH, GLYPH_DEVICES, GLYPH_SETTINGS, GLYPH_LOCK,
+  GLYPH_TRASH, GLYPH_DEVICES, GLYPH_SETTINGS, GLYPH_LOCK, GLYPH_HISTORY,
   GLYPH_TYPE_LOGIN, GLYPH_TYPE_SECURE_NOTE, GLYPH_TYPE_TOTP,
   GLYPH_TYPE_CARD, GLYPH_TYPE_IDENTITY, GLYPH_TYPE_KEY, GLYPH_TYPE_DOCUMENT,
 } from '../shared/glyphs';
@@ -23,6 +23,7 @@ import { renderDevices, teardown as teardownDevices } from '../popup/components/
 import { renderSettings, teardownSettings } from '../popup/components/settings';
 import { renderVaultSettings as renderVaultSettingsView } from '../popup/components/settings-vault';
 import { renderFieldHistory, teardown as teardownFieldHistory } from '../popup/components/field-history';
+import { renderItemHistoryIndex, teardown as teardownHistoryIndex } from '../popup/components/item-history-index';
 import { renderBackupPanel, teardown as teardownBackup } from './components/backup-panel';
 import { renderImportPanel, teardown as teardownImport } from './components/import-panel';
 import { applyColorScheme } from '../shared/color-scheme';
@@ -127,7 +128,7 @@ function typeLabel(t: ItemType): string {
 // Hash routing
 // ---------------------------------------------------------------------------
 
-type VaultView = 'list' | 'detail' | 'add' | 'edit' | 'trash' | 'devices' | 'settings' | 'settings-vault' | 'field-history' | 'backup' | 'import';
+type VaultView = 'list' | 'detail' | 'add' | 'edit' | 'trash' | 'devices' | 'settings' | 'settings-vault' | 'field-history' | 'history' | 'backup' | 'import';
 
 interface HashRoute {
   view: VaultView;
@@ -136,9 +137,15 @@ interface HashRoute {
 }
 
 function parseHash(): HashRoute {
-  const raw = window.location.hash.replace(/^#\/?/, '');
+  let raw = window.location.hash.replace(/^#\/?/, '');
   if (!raw) return { view: 'list' };
 
+  // Normalize legacy bookmarks: #field-history/<id> → #history/<id>
+  if (raw.startsWith('field-history/')) {
+    raw = 'history/' + raw.slice('field-history/'.length);
+    window.location.hash = raw;
+  }
+
   const parts = raw.split('/');
   const view = parts[0] as VaultView;
 
@@ -148,6 +155,10 @@ function parseHash(): HashRoute {
       return { view, id: parts[1] };
     case 'add':
       return { view, type: parts[1] };
+    case 'history':
+      return parts[1]
+        ? { view: 'field-history', id: parts[1] }
+        : { view: 'history' };
     case 'trash':
     case 'devices':
     case 'settings':
@@ -317,6 +328,7 @@ function renderShell(app: HTMLElement): void {
             <button class="vault-sidebar__nav-item" data-nav="trash" title="Trash">${GLYPH_TRASH} <span class="vault-sidebar__nav-label">trash</span></button>
             <button class="vault-sidebar__nav-item" data-nav="devices" title="Devices">${GLYPH_DEVICES} <span class="vault-sidebar__nav-label">devices</span></button>
             <button class="vault-sidebar__nav-item" data-nav="settings" title="Settings">${GLYPH_SETTINGS} <span class="vault-sidebar__nav-label">settings</span></button>
+            <button class="vault-sidebar__nav-item" data-nav="history" title="History">${GLYPH_HISTORY} <span class="vault-sidebar__nav-label">history</span></button>
             <button class="vault-sidebar__nav-item" data-nav="lock" title="Lock">${GLYPH_LOCK} <span class="vault-sidebar__nav-label">lock</span></button>
           </div>
         </div>
@@ -580,7 +592,7 @@ function wireSidebar(): void {
         openTypePanel();
         return;
       }
-      if (nav === 'trash' || nav === 'devices' || nav === 'settings') {
+      if (nav === 'trash' || nav === 'devices' || nav === 'settings' || nav === 'history') {
         state.selectedId = null;
         state.selectedItem = null;
         state.newType = null;
@@ -808,6 +820,7 @@ function teardownPaneComponents(): void {
   teardownDevices();
   teardownSettings();
   teardownFieldHistory();
+  teardownHistoryIndex();
   teardownBackup();
   teardownImport();
 }
@@ -865,6 +878,9 @@ function renderPane(): void {
     case 'field-history':
       renderFieldHistory(pane);
       break;
+    case 'history':
+      renderItemHistoryIndex(pane);
+      break;
     case 'backup':
       renderBackupPanel(pane);
       break;