Or just edit the dates in this URL structure: https://news.ycombinator.com/front?day=2023-09-19
Search for anything at the very bottom of the page. It takes you to a more powerful search page with date filters.
Yep, click the 'past' link in the top bar and you can navigate all through the history.
Ten years ago, via 'past': https://news.ycombinator.com/front?day=2014-09-19