|First Appearance:||"The Wheels of If"|
|Author:||L. Sprague de Camp|
|Turtledove Appearance:||"The Pugnacious Peacemaker"|
|Nationality:||Vinland (born in the United States)|
In "The Wheels of If", Park, a lawyer from New York City, repeatedly finds himself in a series of alternate timelines, before finally coming to rest in a world where, thanks to various changes in the Middle Ages, the Vikings were able to extensively colonize North America.