Question: Voltairine de Cleyre, was an American anarchist, known for being a prolific writer and speaker, and opposing capitalism, the state, marriage, and the domination of religion over sexuality and women's lives, many of her essays were in the "Selected Works of Voltairine de Cleyre", published posthumously by "Mother Earth" in which year?
{'answer': '1914', 'supporting_facts': [['Voltairine de Cleyre', 5], ['Mother Earth (magazine)', 0]]}