Which educationists and social reformers fought for widow remarriage to improve the condition of women in the 19th century?
Which German social economist of Jewish descent, expelled from Germany and France, co-wrote in London "The Communist Manifesto" and "Das Kapital"?
He was born in Florence in 1265, fought in the Guelph–Ghibelline conflict as both soldier and politician, was in the Physicians' and Apothecaries' Guild, and is still renowned as a poet and writer of a great work of Italian literature. Who was he?
