Which is a German astronomer who assigned most of the brighter stars their first systematic names in 1603 in his star atlas "Uranometria"?
Which German social economist of Jewish descent, expelled from Germany and France, co-wrote in London "The Communist Manifesto" and "Das Kapital"?
After a plague in 1633, in which German town did the villagers vow to present a living representation of Christ's Passion every tenth year?
