Born in 1820, which co-author of the 1848 "Communist Manifesto" edited later volumes of "Das Kapital" after Marx's death?

Born in 1815, which Prussian statesman engineered the unification of Germany and became its first chancellor? Born in 1817, which writer lived alone at Walden Pond from 1845 to 1847 and died in 1862? Born in 1818, which German thinker drew on utopian socialism and Henri de Saint-Simon in developing his theory of class… Born in 1819, which monarch reigned from 1837 until her death in 1901? Born in Maryland in 1838, which actor was known for playing Romeo before he assassinated Abraham Lincoln? Born in 1850, which future labor leader joined the cigarmakers' union at age 14? Born in 1854, which poet has been called the precocious boy poet of French Symbolism? Born in 1854, which writer spent two years in Reading Gaol and died in Paris in 1900?