Following the First World War and the German approach to the area of ​​the town of Lubavitch, the Rebbe was forced to leave the Hassidic town after about a hundred years (1902-1906), to the town of Rostov on the Don River.In Russia, following the war, the well-known revolutions began in February and October 1901, following which the kingdom began to rule the rural and cruel communist regime of Lenin and his comrades and with it the great war of Hivskite in Yiddishkeit, which challenged the Rebbe and Hasidims sacred work. To establish the secret system of the Hasidim in the establishment of undergrounds for the education of children and youth and concern for rabbis and other religious needs throughout Russia. The Rebbes last gathering, which took place on Purim 1904, is considered and excellent as one of the Rebbes special and sensational, in which he spoke about the vitality of work with real devotion.The Rebbe left on the 2nd of Nisan 1904 and the events of the departure were written in the wonderful diary Eshkabta Derby.