What was Ottawa's Rideau Canal originally built as?

Discover Canada records this in one direct sentence. The guide writes: Ottawa's Rideau Canal, once a military waterway, is now a tourist attraction and winter skateway. The original purpose the test wants is therefore a military waterway.

The Canal was a defensive infrastructure. Discover Canada writes about its origin in another passage: "The Duke of Wellington sent some of his best soldiers to defend Canada in 1814. He then chose Bytown (Ottawa) as the endpoint of the Rideau Canal, part of a network of forts to prevent the U.S.A. from invading Canada again. Wellington... played a direct role in founding the national capital." So the Rideau Canal was built specifically as a military defense structure — part of a fortification system to keep Canada secure against any future U.S. invasion after the War of 1812.

The Canal helped found Ottawa. Discover Canada notes that Wellington "chose Bytown (Ottawa) as the endpoint of the Rideau Canal" — meaning the canal's construction effectively founded the city. The town was first called Bytown, and was later renamed Ottawa, which Queen Victoria chose as the national capital in 1857. So the Rideau Canal is part of the same historical chain that produced the modern Canadian capital.

Today the Canal serves a different purpose. Discover Canada writes that the Rideau Canal "is now a tourist attraction and winter skateway." So the same waterway built for 19th-century military defense is now a recreational and tourist feature — open for boating in summer and ice-skating in winter (when the canal freezes, the entire stretch through Ottawa becomes one of the world's longest skating rinks). The original military purpose is preserved as Canadian heritage, while the modern function is purely civilian and recreational.

The question is testing whether new citizens know the original purpose of the Rideau Canal. Discover Canada commits to one description: once a military waterway. The right test answer matches that.

The wrong answer choices each pick a different purpose. "A trade route for fur traders" misidentifies the canal — the Rideau Canal was for defense, not the fur trade. "A recreational canal for tourists" is its modern role, not its original purpose. "A transportation route for lumber" is also not the source's original-purpose description. Only the military-waterway answer matches.