When was the Northwest Passage discovered?

The Northwest Passage was first navigated by European explorers during the 16th century, but it wasn't until 1906 that Roald Amundsen became the first to successfully traverse it in its entirety. His journey, which took three years, demonstrated that the passage could be navigated by ship, though it remained largely inaccessible due to ice and harsh conditions until the 20th century. The passage has been sought after for centuries as a potential trade route connecting the Atlantic and Pacific Oceans.