Flying ships that spewed smoke?

Sensationalists love this story. Ufologists and ET lovers are delirious, but historians have a much more rational explanation.

The following happens. After finding the sacred land, dominated by demons, a people arrived that the Celts call gods. According to the accounts, this people would have taught them to read, write and all the sciences they knew, including heart operations.

Legend has it that the ships would have descended from the skies, surrounded by a lot of mist (fog or smoke) and that these ships would have descended right in the middle of the earth. And out of him came the gods, who brought so much good news. For anyone who reads it, it's even difficult not to think about etezinhos arriving, with their ships making smoke, but the historian's explanation is convincing, let's see.

First of all, in the language of the Celts the word sky also meant north. So much so that they always walked towards the sky going to their island (they walked north until they found England). So the ships would have come from the north and not from the sky... but what about the smoke? It is said that sometimes it was customary for colonists to burn the ships as soon as they reached land to be colonized, so that those who regretted would not flee and return, so the Celts would have seen the ships arriving from the north amid the smoke. As for the writing, they say it is similar to the runic script, of the Norse, and it is very likely that it is.