Having seen how that great event in Spanish history, the fall of Granada, set the date for the discovery of America, let us see how it was that a humble Italian sailor came to be present among all those noble Spanish soldiers and statesmen. Let us see why he had brought to Spain the idea of a round world, when most Spaniards still believed in a flat one; and why his round world was perfectly safe to travel over, even to its farthest point, while their flat one was edged with monsters so terrible that no man had ever sought their evil acquaintance. [Illustration: From "The Story of Columbus" by Elizabeth L. Seelys, courtesy of D. Appleton and Company. THE GENOA HOME] The amount of really reliable information which we possess concerning the childhood of Christopher Columbus could be written in a few lines. We do not know accurately the date of his birth, though it was probably 1451. Sixteen Italian cities have claimed him as a native; and of these Genoa in northern Italy offers the best proofs. Papers still exist showing that his father owned a little house there. Men who have studied the life of Columbus, and who have written much about him, say that he was born in the province, not the city, of Genoa; but Columbus himself says in his diary that he was a native of Genoa city; and present-day Genoese have even identified the very street where he was born and where he played as a child--the Vico Dritto di Ponticello. In the wall of the house in which he is believed to have lived is placed an iron tablet containing an inscription in Latin. It tells us that "no house is more to be honored than this, in which Christopher Columbus spent his boyhood and his early youth." More important than the exact spot of his birth would be a knowledge of the sort of childhood he passed and of the forces that molded his character. To learn this we must look into the condition of civilization, and particularly of Italian civilization, in the middle sixteenth century. Columbus was born in a brilliant period known now as the Renaissance--a French word meaning re-birth--which marks the beginning of modern history. It followed a long, painful period known to us as the Dark Ages, or Middle Ages, namely, the period between ancient and modern times. In the Middle Ages humanity was very ignorant, hampered by all sorts of evil superstitions; while the daily life of the people was miserable and without comforts, lacking many things which we consider necessities. Yet even in those far-away days things were improving, because man has always felt the desire to make his lot better; and the constant effort of these people of the Middle Ages led to that beautiful awakening which we call the Renaissance.