diff --git a/pages/[gallery]/age.tsx b/pages/[gallery]/age.tsx
new file mode 100644
index 00000000..1745ee2e
--- /dev/null
+++ b/pages/[gallery]/age.tsx
@@ -0,0 +1,141 @@
+import type { GetStaticPaths, GetStaticProps } from 'next'
+import Head from 'next/head'
+import { type ParsedUrlQuery } from 'node:querystring'
+import { useEffect, useMemo, useRef, useState } from 'react'
+import type ReactImageGallery from 'react-image-gallery'
+
+import config from '../../config.json'
+import getAlbum from '../../src/lib/album'
+import getAlbums from '../../src/lib/albums'
+import getGalleries from '../../src/lib/galleries'
+import All from '../../src/components/All'
+import AlbumContext from '../../src/components/Context'
+import SplitViewer from '../../src/components/SplitViewer'
+import useMemory from '../../src/hooks/useMemory'
+import { AlbumMeta, Item, ServerSideAllItem } from '../../src/types/common'
+
+type ComponentProps = {
+  items: ServerSideAllItem[];
+}
+
+export const getStaticProps: GetStaticProps<ComponentProps> = async (context) => {
+  const params = context.params!
+  const { albums } = await getAlbums(params.gallery as string)
+  const allItems: ServerSideAllItem[] = []
+
+  await albums.reduce(async (previousPromise, album) => {
+    await previousPromise
+    const { album: { items, meta } } = await getAlbum(params.gallery as string, album.name)
+    const albumCoordinateAccuracy = meta?.geo?.zoom ?? config.defaultZoom
+    
+    items.forEach((item: Item) => {
+      if (item.persons) {
+        allItems.push({
+          ...item,
+          gallery: params.gallery as string,
+          album: album.name,
+          corpus: [item.description, item.caption, item.location, item.city, item.search].join(' '),
+          coordinateAccuracy: item.coordinateAccuracy ?? albumCoordinateAccuracy,
+        })
+      }
+    })
+  }, Promise.resolve())
+
+  return { props: { items: allItems } }
+}
+
+export const getStaticPaths: GetStaticPaths = async () => {
+  const { galleries } = await getGalleries()
+  const paths = galleries.map((gallery) => ({ params: { gallery } }))
+  return { paths, fallback: false }
+}
+
+function calculateAge(dob: string, photoDate: string): number {
+  const birth = new Date(dob.substring(0, 10))
+  const photo = new Date(photoDate.substring(0, 10))
+  
+  let age = photo.getFullYear() - birth.getFullYear()
+  const m = photo.getMonth() - birth.getMonth()
+  if (m < 0 || (m === 0 && photo.getDate() < birth.getDate())) {
+    age--
+  }
+  return age
+}
+
+function AgePage({ items = [] }: ComponentProps) {
+  const refImageGallery = useRef<ReactImageGallery>(null)
+  const [selectedAge, setSelectedAge] = useState<number | null>(null)
+  const [memoryIndex, setMemoryIndex] = useState(0)
+  const [uniqueAges, setUniqueAges] = useState<number[]>([])
+  const [mounted, setMounted] = useState(false)
+
+  useEffect(() => {
+    const ages = new Set(
+      items.flatMap(item => 
+        item.persons?.map(person => {
+          if (!person.dob || !item.filename) return null
+          const photoDate = Array.isArray(item.filename) 
+            ? item.filename[0].substring(0, 10)
+            : item.filename.substring(0, 10)
+          return calculateAge(person.dob, photoDate)
+        })
+      ).filter((age): age is number => age !== null)
+    )
+    setUniqueAges(Array.from(ages).sort((a, b) => a - b))
+    setMounted(true)
+  }, [items])
+
+  const filteredItems = useMemo(() => {
+    if (selectedAge === null) return []
+    return items.filter(item => {
+      if (!item.persons || !item.filename) return false
+      const photoDate = Array.isArray(item.filename) 
+        ? item.filename[0].substring(0, 10)
+        : item.filename.substring(0, 10)
+      return item.persons.some(person => {
+        if (!person.dob) return false
+        return calculateAge(person.dob, photoDate) === selectedAge
+      })
+    })
+  }, [items, selectedAge])
+
+  const { setViewed, memoryHtml } = useMemory(filteredItems, refImageGallery)
+  const zooms = useMemo(() => ({ geo: { zoom: config.defaultZoom } }), [])
+
+  return (
+    <div>
+      <Head>
+        <title>History App - Ages</title>
+        <link rel="icon" href="/favicon.ico" />
+      </Head>
+      <div className="flex flex-wrap gap-2 p-4">
+        {uniqueAges.map((age) => (
+          <button
+            key={age}
+            onClick={() => setSelectedAge(age === selectedAge ? null : age)}
+            className={`px-3 py-1 rounded transition-colors ${
+              selectedAge === age 
+                ? 'bg-blue-500 text-white' 
+                : 'bg-gray-100 hover:bg-gray-200'
+            }`}
+          >
+            {age}
+          </button>
+        ))}
+      </div>
+      <AlbumContext.Provider value={zooms}>
+        {memoryHtml}
+        <SplitViewer
+          setViewed={setViewed}
+          items={filteredItems}
+          refImageGallery={refImageGallery}
+          memoryIndex={memoryIndex}
+          setMemoryIndex={setMemoryIndex}
+        />
+        <All items={filteredItems} keyword="" refImageGallery={refImageGallery} />
+      </AlbumContext.Provider>
+    </div>
+  )
+}
+
+export default AgePage
diff --git a/src/components/GalleryPage/index.tsx b/src/components/GalleryPage/index.tsx
index aebc7059..1c69adf5 100644
--- a/src/components/GalleryPage/index.tsx
+++ b/src/components/GalleryPage/index.tsx
@@ -21,7 +21,7 @@ function GalleryPage({ gallery, albums, indexedKeywords }: Gallery.ComponentProp
       <ul>
         <li>View <Link href={`/${gallery}/all`}>All</Link></li>
         <li><Link href={`/${gallery}/today`}>Today</Link></li>
-        <li><Link href={`/${gallery}/today`}>by Age</Link></li>
+        <li><Link href={`/${gallery}/age`}>by Age</Link></li>
       </ul>
       <Galleries items={filtered} gallery={gallery} />
     </>