How long have settlers and immigrants contributed to the diversity of Canada?

Discover Canada records this in one direct sentence. The guide writes: Canada has welcomed generations of newcomers to our shores to help us build a free, law-abiding and prosperous society. For 400 years, settlers and immigrants have contributed to the diversity and richness of our country, which is built on a proud history and a strong identity. The duration the test wants is therefore 400 years.

The 400-year span has a starting point. Discover Canada commits Canada's settlement story to a four-century timeframe. Counting back from the publication of the guide, 400 years places the start of settler-and-immigrant contribution in the early 1600s — exactly the era of Acadian and French settlement. The guide writes that "the Acadians are the descendants of French colonists who began settling in what are now the Maritime provinces in 1604" — making 1604 the foundational date for European settlement in what would become Canada. Add 400 years forward and the result places the count in the early twenty-first century, when the guide was produced.

The 400-year frame is shared with the Crown. Discover Canada writes elsewhere: "The Crown has been a symbol of the state in Canada for 400 years." So 400 years is the official length of European-rooted Canadian history — the same span for both the Crown's role and for settler-and-immigrant contribution to diversity. The two phrases are deliberately parallel: the Crown anchors the political tradition for 400 years, and settlers-and-immigrants build the diverse society for the same 400 years. Together they give Canada both a long political continuity and a long demographic story.

The diversity span is foundational to Canadian identity. Discover Canada writes that this 400-year contribution has built "the diversity and richness of our country, which is built on a proud history and a strong identity." So the count is not just chronological — it is part of Canada's self-understanding. Generations of newcomers, across four centuries, helped build a free, law-abiding, and prosperous society. The guide also writes that "Canada is often referred to as a land of immigrants because, over the past 200 years, millions of newcomers have helped to build and defend our way of life" — meaning the 200-year mass-migration phrase and the 400-year settler-immigrant phrase coexist: 200 years for the modern-immigration era, 400 years for the full settler-immigrant timeline back to the early 1600s.

The question is testing whether new citizens know how long settlers and immigrants have contributed to Canadian diversity. Discover Canada commits to one duration: 400 years. The right test answer matches that.

The wrong answer choices each substitute a different duration. "100 years" is too short — the guide places contribution at four centuries. "200 years" is the modern-immigration phrase ("a land of immigrants because, over the past 200 years") — but the broader settler-and-immigrant span is 400 years. "300 years" falls between but is not what the source names. Only 400 years matches.