<p></p>
<p><b>@tomhughes</b> requested changes on this pull request.</p>

<p dir="auto">Looks good to me - just one small cosmetic comment.</p><hr>

<p>In <a href="https://github.com/openstreetmap/openstreetmap-website/pull/5826#discussion_r2009138775">app/assets/javascripts/index/history.js</a>:</p>
<pre style='color:#555'>> @@ -97,11 +158,22 @@ OSM.History = function (map) {
       .then(response => response.text())
       .then(function (html) {
         displayFirstChangesets(html);
+        enableChangesetIntersectionObserver();
+
+        if (params.has("before")) {
+          const firstItem = $("#sidebar_content .changesets ol").children().first()[0];
+          firstItem?.scrollIntoView();
+        }
+        if (params.has("after")) {
+          const firstItem = $("#sidebar_content .changesets ol").children().last()[0];
</pre>
<p dir="auto">Shouldn't this be <code class="notranslate">lastItem</code>?</p>

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