my icloud calendar on my macbook is not syncing to icloud
I have a couple icloud calendars that I have added a bunch of events to on my macbook. These events do not show up on icloud online or on my iphone which is set to automatically sync to icloud. I have tons of events on my macbook and I would like to be able to see them on my iphone through icloud too. I can't lose these events, please help!
MacBook, OS X Mountain Lion (10.8.4)