Columbus Day is a special holiday all across the Americas. Countries in North, Central and South America celebrate the anniversary of Christopher Columbus's arrival in the Americas on October the 12th, 1492. In the United States, the day is called Co...
-Today we take for granted that the world is round. In the fifteenth century, however, most people believed the world was flat. They thought that monsters or a trip over the edge of the earth waited for anybody who sailed outside the limits of known...
Little Mary: I find in my history book there is always such number (1451-1560) after the name Christopher Columbus. Would you please explain why, sir? Little Rose: I can tell her, sir. It was Columbus' telephone number! 小玛丽：我在历史书中发现，克...
