These first twelve amendments were all adopted during the infancy of the Constitution, and while it was still regarded as an experiment. But though they had the effect of quieting public opinion and allaying the fears of the people concerning the new form of government, they made no important changes in the Constitution, leaving all its main features as originally adopted. The same may be said of the last three amendments, which were the result of the Civil War. They were proposed and ratified, as Bryce says, "under conditions altogether abnormal, some of the lately conquered states ratifying while actually controlled by the Northern armies, others as the price which they were obliged to pay for the readmission to Congress of their senators and representatives."[47] These amendments were really carried through, not by the free choice of three-fourths of the states, as the Constitution requires, "but under the pressure of a majority which had triumphed in a great war,"[48] and used military and political coercion to accomplish what otherwise could not have been brought about. Nothing could have been farther from the intention of the victorious Northern states at that time than any important change in the form or character of the government which they had waged a gigantic civil war to defend and enforce. Slavery, it is true, was abolished to remove forever the bone of contention between the North and the South. But the Constitution survived the Civil War, unchanged in all its essential features, and more firmly established than ever. That the plan of government originally established has undergone no important modification by constitutional amendment can not be ascribed to the fact that important changes have not been suggested. With the growth of more liberal views concerning government many attempts have been made to remove the constitutional barriers erected by our forefathers to stay the progress of democracy. Among the political reforms contemplated by this numerous class of proposed amendments may be mentioned a shorter term for United States senators and election by popular vote; direct election of the President and the abolition of his veto power; a shorter term for Federal judges and their removal by the President on the joint address of both houses of Congress. The aim of all these proposed amendments has been the same, viz., to make the Constitution accord better with the democratic spirit of the time. It is interesting to observe, however, that with the single exception of the proposed election of United States senators by popular vote, not one of these had the support of either house of Congress, much less the two-thirds majority in both, or a majority in the legislatures of two-thirds of the states, as required to authorize their submission for ratification or rejection. Even this measure, which has passed the House of Representatives several times by an overwhelming vote, has been entirely ignored by the Senate.