Just log into your CMS and navigate to Global Content Blocks.
- Create a new Global Content Block
- Uncheck the wysiwyg editor checkbox.
- Enter the tags {litera} and {/literal} which tells the cms not to convert anything within those tags into html.
- Paste your calendar code between the {literal} tags.
- Click save.
- Copy the Global Content Block tag and paste it on any page of your site where you want to the event listing to appear.