"The earliest decades of the new nation saw relatively little new immigration. During the 1780’s, while the nation was governed under the Articles of Confederation, the loosely joined states went through difficult economic times, and the future of the independent country seemed too insecure to encourage new immigration. However, even as the nation began settling into a more stable form after adoption of the U.S. Constitution in 1789, immigration was still well below the levels it would later reach. Europe’s Napoleonic Wars, which lasted until 1815, and the War of 1812 between Great Britain and the United States made it difficult for emigrants to leave Europe. During the three-decade period between 1789—when the United States adopted its new Constitution and form of government— and 1820, fewer than 500,000 new immigrants arrived in the United States. During that same period, the same political conditions that made leaving European more difficult also motivated some Europeans to emigrate. For example, during the 1790’s, English radicals and Irish opposed to English rule fled their homelands to America. The Revolution in France brought new French arrivals at the end of the eighteenth century. Other French-speaking immigrants fled slave uprisings in Haiti and other West Indies colonies around the same time. These French-speaking newcomers settled mainly in coastal cities, notably in Charleston, New York, Baltimore, and Philadelphia, as well as in New Orleans, which became part of the United States in 1803 as a result of the Louisiana Purchase. The most numerous non-English-speaking immigrants in the United States at the time of independence were Germans. Germans also constituted one of the significant immigrant groups at the opening of the nineteenth century. Many of those Germans came from what is now the southwestern part of Germany, which was then a poor area. Bad German harvests in 1816-1817 set in motion a flood of emigration out of that region. Although many of the emigrants moved east, to Russia, about 20,000 people from southwestern Germany came to America to escape famine."