These considerations, added to the preponderance of Roman Catholics among the Irish immigrants, led to a renewal of the anti-immigration agitation, which had been so vigorous ten years earlier. This time the movement took the form of a secret organization, started probably in New York City in 1850. This society grew rapidly. Its meetings were held in secret, and the purpose and even the name of the organization were so much of a mystery at first that the rank and file of the members, either from necessity or from choice, were in the habit of answering all questions regarding it by saying, “I don’t know.” Hence it came to be known as the “Know Nothing” party, and as such has come down to history.[91] The organization did not long maintain its ultra-secret character. This had mostly disappeared by 1854, and the society openly indorsed candidates, and put forward candidates of its own. It is recorded that in 1855 the governors and legislatures in New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, California, and Kentucky were Know Nothings, and that they had secured many offices in other states. By 1855 they began to mature plans for the presidential election. They adopted a platform calling for a change in the existing naturalization laws, for the repeal of the state laws allowing unnaturalized foreigners to vote, and the repeal by Congress of all acts making land grants to unnaturalized foreigners and allowing them to vote in the territories. In 1856 a national convention was held, and Millard Fillmore was nominated for president. The principles of the platform adopted were that Americans must rule America, that native-born citizens should be selected for all state, federal, and municipal government employment in preference to all others, that the naturalization law should be changed so as to require twenty-one years’ residence, and that a law should be passed excluding from the United States all paupers or persons convicted of crime. This party had its greatest strength in the thirty-fourth Congress, 1854–1856, and in the discussions of the period many severe charges were made against the immigrants. But the Know Nothings were in the minority and consequently had little real influence on legislation. The immigration laws proposed by them were, as a rule, confined to the exclusion of foreign paupers and criminals, and none of these was passed.[92] The diversion of public interest from immigration affairs to the great questions of slavery, and the events preliminary to the Civil War, coupled with the decline in the volume of immigration after 1854, led to the natural decline and final break-up of the Know Nothing party.