19th-Century Labor-Union Activist

(1882 - 1949) ~ Bulgarian Communist Politician, First Communist Leader of Bulgaria from 1946 to 1949,led the Communist International from 1935 to 1943 : Also known as Georgiy Mihaylovich Dimitrov was a Bulgarian communist politician. He was the first communist leader of Bulgaria from 1946 to 1949. Dimitrov led the Communist International from 1935 to 1943. (From : Wikipedia.org.)

(1844 - 1906) ~ Austrian Physicist, Philosopher, Statistical Mechanist, Definer of Entropy and the Second Law of Thermodynamics : ...an Austrian physicist and philosopher. His greatest achievements were the development of statistical mechanics, and the statistical explanation of the second law of thermodynamics. In 1877 he provided the current definition of entropy. (From : Wikipedia.org.)

(1888 - ) ~ Anarchist Publication Published by Federaci?n Anarquista Ib?rica during the Spanish Civil War, 1936 : A great stage of the Iberian Anarchist journalism. (From : Cedall.org.)

(1782 - 1854) ~ Father of Frenchn Liberal and Social Catholicism, Catholic Priest, Philosopher, Political Theorist, one of the Most Influential Intellectuals of Restoration France : A French Catholic priest, philosopher and political theorist. He was one of the most influential intellectuals of Restoration France. Lamennais is considered the forerunner of liberal Catholicism and social Catholicism. (From : Wikipedia.org.)

"Recollections on Marx and Engels," by Mikhail Bakunin, written between 1869 and 1871.

"Responsibility of Parenthood," by Margaret Sanger, Nov. 1935. Source: Margaret Sanger Papers, Sophia Smith Collection, Smith College , MSMS71:773.

"The First Socialist Society: A History of the Soviet Union from Within," by Geoffrey Hosking, published by Harvard University Press, 1985.

"When Should A Woman Avoid Having Children?," by Margaret Sanger, Nov 1918. Source: Birth Control Review, Nov. 1918, 6-7, Margaret Sanger Microfilm S70:807.

"Looking back on the Spanish War," by George Orwell, 1943.