Audio | Creative Commons
If you're developing history interatives, you'll want to put this one near the top of your bookmarks. A huge resource of Creative Commons licensed audio to add to your storytelling.
You'll recall we featured here a couple weeks ago OYEZ, OYEZ, the audio record of the US Supreme Court. A great treasure trove right there.
Yet developer's will find even more to cheer about in the music sections. Including Soundlift.com a fantastic resource in its own.