The Vikings were the first Europeans to reach Canada, about 1,000 years ago.

Discover Canada records this in one direct sentence under the heading "The First Europeans". The guide writes: The Vikings from Iceland who colonized Greenland 1,000 years ago also reached Labrador and the island of Newfoundland. The remains of their settlement, l'Anse aux Meadows, are a World Heritage site. The status the test wants is therefore true — the Vikings were the first named Europeans to reach Canadian soil, about 1,000 years ago.

Four precise commitments. Discover Canada commits the Viking arrival to FOUR specific facts: (1) the Vikings came from Iceland; (2) they colonized Greenland 1,000 years ago; (3) they also reached Labrador and the island of Newfoundland; (4) the remains of their settlement, l'Anse aux Meadows, are a World Heritage site. So the source pinpoints both the named time depth (1,000 years ago) and the specific named landfalls in what is now Canada.

The named heading confirms the priority. Discover Canada places the Viking story under the explicit named heading "The First Europeans" — making it unambiguous that the Vikings were named as the first Europeans to reach Canada. The named arrival predates by centuries other named European explorers like Jacques Cartier (1534-1542) and John Cabot (1497).

European exploration of Canada came centuries afterwards. Discover Canada commits later named European arrivals to specific years: "Between 1534 and 1542, Jacques Cartier made three voyages across the Atlantic, claiming the land for King Francis I of France." And: "European exploration began in earnest in 1497 with the expedition of John Cabot, who was the first to draw a map of Canada's East Coast." So the named European exploration, starting from Cabot in 1497, came roughly 500 years after the named Viking arrival 1,000 years ago. The named l'Anse aux Meadows site in Newfoundland is the named UNESCO World Heritage site that confirms the Viking presence — making the Viking achievement archaeologically as well as historically named in the source. So when the test asks whether the Vikings were the first Europeans to reach Canada about 1,000 years ago, the source-precise answer is true.

The question is testing whether new citizens know about the named Viking arrival. Discover Canada commits to one named first-European arrival: the Vikings from Iceland, about 1,000 years ago. The right test answer matches that — true.

The wrong answer ("False") reverses the source — the Vikings WERE the first named Europeans to reach Canada, about 1,000 years ago. The source places this under the explicit named heading "The First Europeans". Only the true answer matches the source.