Ack, I synced my HTC One VX phone's calendar to my Google calendar, and Google DELETED all my data!

[androidquestion]

Maybe I should have known, but I didn't think that sync meant DELETE any appointments that were already on my phone! Does anyone know if there is a way to retrieve the appointments that Google seems to have deleted? I did not have a backup to my computer; I thought all my appointments were already synced up to an old google account that I synced with a new google account, so that when I synced my phone's calendar to the new account, I thought all my appointments would be there; alas, that is not the case. My guess is that the old appointments were stored in the phone's calendar and that when Google synced, it erased all of those, which is really frustrating. Any help would be appreciated, thanks.