The strife over the admission of the last-named State was so angry that more than one person saw the shadow of the tremendous civil war that was to darken the country and deluge it in blood forty years later. The invention of the cotton gin in 1793 had made cotton the leading industry of the South and given an enormous importance to slavery. The soil and the climate and economic conditions caused it to flourish in the South, and the lack of such conditions made it languish and die out in the North.

Missouri applied for admission in March, 1818, but it was so late in the session that Congress took no action. At the following session a bill was introduced containing a provision that forbade slavery in the proposed new State. The debate was bitter and prolonged, accompanied by threats of disunion, but a compromise was reached on the 28th of February, 1821, when the agreement was made that slavery was to be permitted in Missouri, but forever prohibited in all other parts of the Union, north and west of the northern limits of Arkansas, 36° 30', which is the southern boundary of Missouri. The State was admitted August 21st, increasing the number to twenty-four. The census showed that in 1820 the population of the United States was 9,633,822. The State of New York contained the most people (1,372,111); Virginia next (1,065,116); and Pennsylvania almost as many (1,047,507).

PRESIDENTIAL ELECTION OF 1820.

It was in the autumn of 1820, during the excitement over the admission of Missouri, that the presidential election occurred. The result is not likely ever to be repeated in the history of our country. There was no candidate against Monroe, who would have received every electoral vote, but for the action of one member, who declared that no man had the right to share that honor with Washington. He therefore cast his single vote for Adams of Massachusetts. For Vice-President, Daniel D. Tompkins, Republican, received 218; Richard Stockton, of New Jersey, 8; Daniel Rodney, of Delaware, 4; Robert G. Harper, of Maryland, and Richard Rush, of Pennsylvania, 1 vote each. Monroe and Tompkins were therefore re-elected.

THE MONROE DOCTRINE.

South America has long been the land of revolutions. In 1821, there was a general revolt against Spain in favor of independence. Great sympathy was felt for them in this country, and, in March, 1822, Congress passed a bill recognizing the embryo republics as sovereign nations. In the following year President Monroe sent a message to Congress in which he declared that for the future the American continent was not to be considered as territory for colonization by any foreign power. This consecration of the whole Western Hemisphere to free institutions constitutes the Monroe Doctrine, one of the most precious and jealously guarded rights of the American nation. The memorable document which bears the President's name was written by John Quincy Adams, his secretary of State.

America could never forget Lafayette, who had given his services without pay in our struggle for independence, who shed his blood for us, and who was the intimate and trusted friend of Washington. He was now an old man, and, anxious to visit the country he loved so well, he crossed the ocean and landed in New York, in August, 1824. He had no thought that his coming would cause any stir, and was overwhelmed by the honors shown him everywhere. Fort Lafayette saluted him as he sailed up New York Bay, and processions, parades, addresses, feastings, and every possible attention were given to him throughout his year's visit, during which he was emphatically the "nation's guest." Nor did the country confine itself to mere honors. He had been treated badly in France and was poor. Congress made him a present of $200,000 in money, and sent him home in the frigate Brandywine, named in his honor, for it was at the battle of the Brandywine that Lafayette was severely wounded.

An important invention introduced into this country from England in 1822 was lighting by gas, which soon became universal, to be succeeded in later years by electricity. Steamboat navigation was common and travel by that means easy. On land we were still confined to horseback and stages, but there was great improvement in the roads, through the aid of Congress and the different States.

COMPLETION OF THE ERIE CANAL.

The Erie Canal, connecting Buffalo and Albany, was begun on the 4th of July, 1817, its most persistent advocate being Governor De Witt Clinton. It was costly, and the majority believed it would never pay expenses. They dubbed it "De Witt Clinton's Ditch," and ridiculed the possibility that it would prove of public benefit. In October, 1825, it was opened for public traffic. It is 363 miles long, having the greatest extent of any canal in the world. It passes through a wonderfully fertile region, which at that time was little more than a wilderness. Immediately towns and villages sprang into existence along its banks. Merchandise could now be carried cheaply from the teeming West, through the Great Lakes, the Erie Canal, and the Hudson River, to New York City and the Atlantic. Its original cost was $7,600,000, and its earnings were so enormous that in many single years they amounted to half that sum. It is now operated by the State without charge to those using it.