development of the United States By brendan rimmer Apr 22, 1793 Proclamation of Neutrality Issued by George Wahington in hopes to encourage The United States to refrain from becoming a part of the troubles between France and Great Britian Apr 1, 1798 XYZ Affair The French sent 3 agents to meet the American officials that were sent to negogiate with France and demanded that they pay them a fee to be able to see the French officials Sep 30, 1800 Convention of 1800 A peace agreement between France and America to restore the peace between the two countries Apr 30, 1803 Louisiana Purchase President Jackson purchased the land form Napoleon of France. The 15 million dollar purchase doubled the size of the United States Dec 22, 1807 Embargo act passed In hopes to keep American out of foreign conflicts President Jackson issued the embargo act which essentially cut off trade between France and Great Britian. Jun 18, 1812 War fo 1812 A military conflict that lasted for 2 and a half years between America and Great Britian and Ireland. Dec 15, 1814 Treaty of Ghent Ended teh war of 1812 with out any gains for either side. it returned lands back to whoever owned them before the war Dec 2, 1823 Monroe doctrine Stated that America was no longer open to further colonization and that the United States would view such attempts as an act of aggression.