Not using GoldMine's indigenous import feature. That only imports contacts themselves. You cannot import activities using such.
You would need the assistance of a 3rd party tool such as DBX for GoldMine, Inaport or GoldBox OR to write custom SQL coding for such.
If you have a filter/group of contact for whom you'd simply like to add activity history to, you could just create an AP with a single step of 'add history'...
If, however, the information contains specifics of the interactions with customers, you'd need to look at data integration possibilities using pre-packaged tools and/or custom SQL programming -- which isn't necessarily as expensive/difficult as it sounds. I know that John, like me, does a good bit of custom data integration programming for cases like this -- it's a fairly well-traveled road.
Yes, you can with MasterMine for GoldMine. That's one of many uses that will save you a ton of time managing data and people with GoldMine.