Oh for the love of...!
I'm going to say this slowly and clearly, so you and all the others who say these things understand.
THE. 1848. REVOLUTIONS. WERE. NOT. COMMUNIST. They were nationalist in rhetoric, and while they were for more democracy (and other "leftist" things as far as the more oppressive states were concerned) they did not advocate any of communist principle. Hell, the german revolutionaries offered Prussia the chance to become German Emporer, something no communist would ever even consider.