When, with the voyages of Columbus and his successors, the great period of extra-European colonization began, various nations strove to share in the work. Most of them had to plant their colonies in lands across the sea; Russia alone was by her geographical position enabled to extend her frontiers by land, and in consequence her comparatively recent colonization of Siberia bears some resemblance to our own work in the western United States. The other countries of Europe were forced to find their outlets for conquest and emigration beyond the ocean, and, until the colonists had taken firm root in their new homes the mastery of the seas thus became a matter of vital consequence. Among the lands beyond the ocean America was the first reached and the most important. It was conquered by different European races, and shoals of European settlers were thrust forth upon its shores. These sometimes displaced and sometimes merely overcame and lived among the natives. They also, to their own lasting harm, committed a crime whose shortsighted folly was worse than its guilt, for they brought hordes of African slaves, whose descendants now form immense populations in certain portions of the land. Throughout the continent we therefore find the white, red, and black races in every stage of purity and intermixture. One result of this great turmoil of conquest and immigration has been that, in certain parts of America, the lines of cleavage of race are so far from coinciding with the lines of cleavage of speech that they run at right angles to them--as in the four communities of Ontario, Quebec, Havti, and Jamaica. Each intruding European power, in winning for itself new realms beyond the seas, had to wage a twofold war, overcoming the original inhabitants with one hand, and with the other warding off the assaults of the kindred nations that were bent on the same schemes. Generally the contests of the latter kind were much the most important. The victories by which the struggles between the European conquerors themselves were ended deserve lasting commemoration. Yet, sometimes, even the most important of them, sweeping though they were, were in parts less sweeping than they seemed. It would be impossible to overestimate the far-reaching effects of the overthrow of the French power in America; but Lower Canada, where the fatal blow was given, itself suffered nothing but a political conquest, which did not interfere in the least with the growth of a French state along both sides of the lower St. Lawrence. In a somewhat similar way Dutch communities have held their own, and indeed have sprung up in South Africa.