“When I visited Marx in Paris in the summer of 1844,our complete agreement in all theoretical fieldsbecame evident and our joint work dates from that time.”Frederick Engels On This Day, 28th August 1844, Karl Marx and Friedrich Engels met in the Le Café de la Régence in Paris and, although having met a couple years before, began their lifelong friendship and revolutionary work together. As Engels noted in 1885: “When I visited Marx in Paris in the summer of 1844, our complete agreement in all theoretical fields became evident and…