What are the 3 major mountain ranges of the western US?

What it the history of the word precedent? What did the Byzantine empire do to control the Roman Empire? What does the name colosseum mean? What does HD stands for? What best summarizes the significance of the Renaissance? What century was AD 1066 in? How was the impact of Enlightenment ideals on the development of economic political and religious structures in the Western world? What does the name Kelley mean? What nationality is the surname Cowie? Who found the route for the northwest passage? What century is 1826? How did the voyages of discovery change European thought? How many years are in an 8 millennia? What century was it in 1899? What is the origin of the word dufus? What does all our yesterdays mean? Where does the surname mcEwen come from? Where does my last name McLane come from? What classical period is dvorak associated with? What do you call the period of the European history between ancient and modern eras?