In the late 1800s, the American Bison had almost been hunted to extinction by American settlers, but today, they are a thriving part of the Great Plains ecosystem. In 1883, Teddy Roosevelt traveled to what was then known as the Dakota Territory to hunt Bison but fell in love with the West and developed a conservation mindset. In 1905, with the help of William Hornaday, he formed the American Bison Society. Saturday, November 4th, is National Bison Day. Celebrate the fantastic creatures that are Bison with these fun facts and exciting books.