Quiz: What is the historical significance of the Grand Canyon’s So August 4, 2025 by Orin Thorne What is the historical significance of the Grand Canyon’s South Rim? Discover more about Grand Canyon Tours at our home page. A) It was designated as a national park in 1919, making it one of the first national parks in the United States. B) It served as a major trading route for Native American tribes in the region. C) It was the site of the first successful ascent of the canyon in the early 1800s. D) It was recognized as a UNESCO World Heritage Site in 1979. Submit Answer