The number of Irish coming here steadily decreased after 1880 until it has fallen far below that of other European peoples. Altogether, the total Irish immigration from 1820 to 1906 is placed at something over 4,000,000, thus giving the Irish second place as contributors to the foreign-born population of the United States. The Revolution of 1848 was the contributing cause of a large influx of Germans, many of whom were professional men and artisans. From 1873 to 1879 there was great industrial depression in Germany and consequently another large immigration to America took place. Since 1882, there has also been a noticeable decline in German immigrants. From 1820 to 1903, a total of over 5,000,000 Germans was recorded as coming to the United States.[27] In the period from 1880 to 1910 immigration from Italy totaled 4,018,404. It will be remembered that the law requiring the registration of outgoing aliens was not passed until 1908, and it may, therefore, be estimated that 3,000,000 represents the total number of arrivals from Italy, who remained here permanently. After 1903, up to the outbreak of the Great War, the number of alien arrivals steadily increased. In 1905, it was more than 1,000,000; in 1906, it passed the 1,100,000 mark and in 1907 the 1,200,000 mark; in 1913 and 1914, the total number for each year exceeded 1,400,000.[28] During the ten years from 1905 to 1915, nearly 12,000,000 aliens landed in the United States, a yearly average of 1,200,000 arrivals. These alone form more than 37 per cent. of all recorded immigration since 1820 and make up about 88 out of every 100 of our present total foreign-born population.[29] Until interrupted by the European War, the immigration to the United States was the greatest movement of the largest number of peoples that the world has ever known. Of course, there have been economic upheavals from time to time which have noticeably affected this movement. The Civil War, as before noted, and financial panics and industrial depressions in our country interrupted the incoming tide repeatedly. The Great War with its social and economic upheaval had a tremendous effect on our immigration. The twelve months following the declaration of war shows the smallest number of alien arrivals since 1899. The number was slightly over 325,000. The statistics compiled by the Federal Bureau of Immigration show that by far the greater part of the immigrants who come to the United States are from Europe. Of the 1,403,000 alien immigrants who came here in 1914, about 1,114,000 were from Europe; about 35,000 came from Asia; the remainder, about 254,000, came from all other countries combined, principally Canada, the West Indies, and Mexico. Eighty out of every 100, therefore, came from Europe. As many as sixty of that eighty came from the three countries of Italy, Austria-Hungary and Russia. Italy sent 294,689; Austria-Hungary was second with 286,059; Russia contributed 262,409. From all of England,