“People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, "Soften the orange a bit on the right hand corner." I don't try to control a sunset. I watch with awe as it unfolds.” (Carl Rogers)
I was just doing a quick backup and thought you may not know about this lovely little trick - just paste https://www.google.com/calendar/exporticalzip into your browser and go - you will download a zip file of all of your calendars.