For some reason, WordPress’ “wp_get_archives()” function does not allow us to include or exclude categories by default. This is weird, because many other WordPress hooks include this basic functionality.
Thankfully, after struggling for a bit today, I discovered this plugin that solves the issue. It hooks directly into the WordPress core, so customizing is a breeze! Simply add “cat=5” (with the number “5” being the id of the category you want to include) to the “get_archives” parameters in your template file! It’ll look like this: <?php wp_get_archives(‘cat=5’); ?>
Pretty cool, eh?