Statistics for occurrence #1 of “King Olaf Tryggvason” in entry vinland of Harper's Encyclopedia of United States History:

...hat sixteen winters had elapsed, from the time when Eric the Red went to colonize Greenland, Leif, Eric's son, sailed out from Greenland to Norway. He arrived in Drontheim in the autumn, when King Olaf Tryggvason was come down from the North, out of Halagoland. Leif put into Nidaros with his ship, and set out at once to visit the king. King Olaf expounded the faith to him, as he did to other heathen m...
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