Fully syncing Google Calendar?

My Google Calendar on my laptop has data going back many years to when I first started using my Palm T2 (yes, that long!!!). My Note 3, though, only has data going back about 16 months. I have looked in the past to find a way to get all my Google Calendar on to my phone and found a convoluted route but am hoping that, by now, Google or one of the clever people of this forum have found a way to do this?

It seems daft not to be able to do it as I'm sure it can't be a storage issue as most phones could cope with this. I assume it's an issue of the amount of time syncing would take with a larger database but i, for one, would sacrifice an immediate sync for a complete one.

Any thoughts please?