How to embed a Google calendar?
Google calendars can be easily embedded using HTML snippets.

Official instructions on how to customize and retrieve the code to use for embedding is available at
https://support.google.com/calendar/bin/answer.py?hl=en&answer=41207

Within the App, all you need to do is paste this code into a HTML Snippet.

Please remember to make your calendar Public within Google Share options if you wish for all website visitors to be able to see the calendar.