Renowned political theorist, philosopher, and economist. He famously penned both Das Kapital and The Communist Manifesto.
His work with Friedrich Engels produced a new philosophy of government and economics that would influence all of Russia and lead to numerous revolts.
He inspired the Russian Socialist leader Vladimir Ilyich Lenin.
He attended both the University of Bonn and the University of Berlin.
He married Jenny von Westphalen in 1843; the couple had four daughters and three sons.