Here's why:
* Born in Iceland: Leif Eriksson was born in Iceland to Icelandic parents.
* Norse Settlers in Greenland: Leif Eriksson's father, Erik the Red, had been banished from Iceland and founded the first Norse settlement in Greenland.
* Viking Exploration: Leif Eriksson was a part of the Viking exploration tradition, a culture that included Norse people from Iceland, Norway, Denmark, and other Scandinavian regions.
While he is associated with Greenland due to his father's settlement, he wasn't "Greenlandic" in the modern sense. He was part of the Norse culture that had settled in Greenland.
It's also important to note that the term "Swedish" wasn't as clearly defined during Leif Eriksson's time. The term "Norse" encompasses a wider cultural group that included what we now consider to be Sweden, Norway, Denmark, and Iceland.