League of the Just
Be that as it may, in the latter part of January 1847 the disparate parts of the fledgling German Communist movement began to congeal in a single organisational entity when the London center of the League of the Just first broached the idea of organisational unity with the Communist Corresponding Committee. A letter of 20 January 1847 by Schapper requested that Marx join the League in anticipation of a scheduled London congress at which a new set of principles would be adopted based upon the ideas previously expressed by Marx and Engels. Both Marx and Engels were persuaded by the appeal and they both joined the League of the Just shortly thereafter, followed by other members of the Communist Corresponding Committee.