The most important act of Jefferson's administration was the purchase of Louisiana from France for fifteen millions of dollars. Bonaparte had intended, after that great territory had been ceded to him by Spain, to make a military colony at New Orleans, and thus control the Mississippi and its branches; but as he wanted money, and as his ambition centred in European conquests, he was easily won over by the American diplomatists to forego the possession of that territory, the importance of which he probably did not appreciate, and it became a part of the United States. James Monroe and Robert Livingston closed the bargain with the First Consul, and were promptly sustained by the administration, although they had really exceeded their instructions. Bonaparte is reported to have said of this transaction: "This accession of territory strengthens forever the power of the United States. I have given to England a maritime rival that will sooner or later humble her pride."

By this purchase, which Jefferson had much at heart, the United States secured, not only millions of square miles of territory, but the control of the Gulf of Mexico. This fortunate acquisition prevented those entangling disputes and hostilities which would have taken place whether Spain or France owned Louisiana. Doubtless, Jefferson laid himself open to censure from the Federalists for assuming unconstitutional powers in this purchase; but the greatness of the service more than balanced the irregularity, and the ridicule and abuse from his political enemies fell harmless. No one can question that his prompt action, whether technically legal or illegal, was both wise and necessary; it practically gave to the United States the undisputed possession of the vast territory between the Mississippi and the Rocky Mountains. Moreover, the President's enlightened encouragement of the explorations of Lewis and Clarke's expedition across the Rocky Mountains to the Pacific Ocean, led to the ultimate occupancy of California and the west coast itself.

The next event of national interest connected with the administration of Jefferson in his long term of eight years (for he was re-elected president, and began his second term in 1805), was the enterprise of Aaron Burr, with a view of establishing a monarchy in Mexico. It was fortunately defeated, and the disappointed and ambitious politician narrowly escaped being convicted of high treason. He was saved only by the unaccountable intrigues of the Federalists at a time of intense party warfare. Jefferson would have punished this unscrupulous intriguer if he could; but Burr was defended by counsel of extraordinary ability,--chiefly Federalist lawyers, at the head of whom was Luther Martin of Maryland, probably the best lawyer in the country, notwithstanding his dissipated habits. Martin was one of those few drinking men whose brains are not clouded by liquor. He could argue a case after having drunk brandy enough to intoxicate any ordinary man, and be the brighter for it. Burr also brought to bear the resources of his own extraordinary intellect, by way of quiet suggestions to his counsel.

This remarkable man was born at Newark, N.J., in 1756, and was the son of the Rev. Aaron Burr, president of Princeton College. He was a grandson of the celebrated Jonathan Edwards, the most original and powerful metaphysical intellect known to the religious history of this country, who confirmed Calvinism as the creed of New England Puritans. The young Burr, on the death of his father and grandfather, inherited what was then considered as a fortune, and was graduated at Princeton in 1772, with no enviable reputation, being noted for his idleness and habits bordering on dissipation. He was a handsome and sprightly young man of sixteen, a favorite with women of all ages. He made choice of the profession of law, and commenced the study under Tappan Reeve of Elizabethtown. After the battle of Bunker Hill he entered the army at Boston, but, tired of inactivity, joined Arnold's expedition to Quebec, where he distinguished himself by his bravery. Ill-health compelled him to leave the army after four years service,--the youngest colonel in the army. He was no admirer of Washington, regarding him as "a farmer and Indian-fighter rather than a soldier." He favored the cabal against him, headed by Gates and Conway. Washington, while ready to acknowledge Burr's military abilities, always distrusted him, and withheld from him the rank of brigadier.

On leaving the army, at the age of twenty-three, Burr resumed his studies of the law, and was admitted to the Albany bar after brief preparation. Conscious of his talents, he soon after settled in New York, and enjoyed a lucrative practice, the rival of Alexander Hamilton, being employed with him on all important cases. He had married, in 1782, the widow of an English officer, a Mrs. Provost, a lady older than he,--with uncommon accomplishments. In 1784 he was chosen a member of the New York Legislature, and was on intimate terms with the Clintons, the Livingstons, the Van Rennselaers, and the Schuylers. In 1789 he was made Attorney-General of the State during the administration of Governor George Clinton. His popularity was as great as were his talents, and in 1791 he was elected to the United States Senate over General Philip Schuyler, and became the leader of the Republican party, with increasing popularity and influence. In 1796 he was a presidential candidate, and in 1800, being again a candidate for the presidency, he received seventy-three votes in the House of Representatives,--the same number that were cast for Jefferson. He would, doubtless, have been elected president but for the efforts of Hamilton, who threw his influence in favor of Jefferson, Democrat as he was, as the safer man of the two. Burr never forgave his rival at the bar for this, and henceforward the deepest enmity rankled in his soul for the great Federalist leader.

As Vice-President, Burr was marked for his political intrigues, and incurred the distrust if not the hostility of Jefferson, who neglected Burr's friends and bestowed political favors on his enemies. Disgusted with the inactivity to which his office doomed him, Burr pulled every wire to be elected governor of New York; but the opposition of the great Democratic families caused his defeat, which was soon followed by his assassination of Hamilton, called a duel. Universal execration for this hideous crime drove him for a time from New York, although he was still Vice-President. But his political career was ended, although his ambition was undiminished.

Then, seeing that his influence in the Eastern and Middle States was hopelessly lost, Burr looked for a theatre of new cabals, and turned his eyes to the West, opened to public view by the purchase of Louisiana. In the preparation of his plans he went first to New Orleans, then a French settlement, where he was lionized, returning by way of Nashville, Frankfort, Lexington, and St. Louis. At the latter post he found General Wilkinson, to whom he communicated his scheme of founding an empire in the West,--a most desperate undertaking. On an island of the Ohio, near Marietta, he visited its owner, called Blennerhasset, a restless and worthless Irishman, whom he induced to follow his fortunes.

The adventurers contracted for fifteen boats and enlisted quite a number of people to descend the Mississippi and make New Orleans their rallying-point, supposing that the Western population were dissatisfied with the government and were ready to secede and establish a new republic, or empire, to include Mexico; also relying on the aid of General Wilkinson at St. Louis. But they miscalculated: Wilkinson was true to his colors; the people whom they had seduced gradually dropped off; the territorial magistrates became suspicious and alarmed, and the governor of the Territory communicated his fears to the President, who at once issued a proclamation to arrest the supposed conspirators, who had fled when their enterprise had failed.

Burr was seized near Natchez, and was tried for conspiracy; but the trial came to nothing. He contrived to escape in the night, but was again arrested in Alabama, and sent to Richmond to be tried for treason. As has been said, he was acquitted, by a jury of which John Randolph was foreman, with the sympathy of all the women, of whom he was a favorite to the day of his death. The trial lasted six months, and Jefferson did all he could to convict him, with the assistance of William Wirt, just rising into notice.

Although acquitted, Burr was a ruined man. His day of receptions and popularity was over. His sad but splendid career came to an inglorious close. Feeling unsafe in his own country, he wandered abroad, at times treated with great distinction wherever he went, but always arousing suspicions. He was obliged to leave England, and wandered as a fugitive from country to country, without money or real friends. At Paris and London he suffered extreme poverty, although admired in society. At last he returned to New York, utterly destitute, and resumed the practice of the law, but was without social position and generally avoided. He succeeded in 1832 in winning the hand of a wealthy widow, but he spent her money so freely that she left him. After the separation he supported himself with great difficulty, but retained his elegant manner and fascinating conversation, until he died in the house of a lady friend in 1836, and was buried at Princeton by the side of his father and grandfather.