What is the feminine of Walter?

Which European power took the spice trade from the Arabs? What were the challenges of the explorers in the 1600s? What role did vassals play in the structure of feudalism? What do they use corn for in medieval times? Name 3 nations which established empires in the Western Hemisphere? What is the story behind the word jerk? How can individuals and societies remember and commemorate difficult histories? What is another name for a feudal lord's estate? How old are medieval bailiffs? Where do most thrombi originate from? What is responsible for European dominance in the nineteenth and twentieth centuries? What happened in 1450 AD? What did a Roman soldier's sword cost? When was Western Forge created? When was Raymond Weil created? How long did the cattle drives in history last? What contributed to the downfall of the roman empire but not the Han dynasty? What is the origin of the quote It was the best of times It was the worst of times? How did farming make civilization possible? What is the difference between modern and traditional security?