On this day, 144 years ago, on December 2, 1881 (October 11, 1881 in the lunar calendar), Marx's wife Yanni passed away. Yanni Marx (February 12, 1814-December 2, 1881) was originally known as Johanna "Jeanne" Berta Juliet von Westfalen. She was a German sociologist and the wife of Karl Marx. He married Karl Marx in 1843. She then devoted herself to serving her husband Carl. Copy Marx's manuscripts, correct errors and polish them. During her marriage to Carl, she had a total of seven children, but only three daughters Eleanor, Yanni and Laura, survived. The three daughters were also deeply influenced by their father, sharing part of Marx's work or participating in the workers 'movement. Yanni was diagnosed with cancer in 1867. She died on December 2, 1881 in London at the age of 67. Yanni and Marx's first and lifelong secretary: wife Yanni Marx, Engels and Marx's three daughters-Yanni, Alina and Laura