Reply #148: I wouldn't describe Das Kaptial as funny, more like tedious.

[liberation]

Most people miss the fact that Das Kaptial is not just one book, but 3 volumes. Where he does indeed mention socialism/socialistic currents prior/concurrent to his work, in terms of what he defined the "Petit bourgeois socialism," Poudhon's socialism, heck he even mentions it in terms of native American tribes, etc.

Anyhow, we can pick nits all you want. But claiming that Marx defined socialism and communism as interchangeable terms is a bit disingenuous. Esp. after he laid out the capitalism -> socialism -> communism evolutionary theory (whether that is a correct/practical/utopian approach is not relevant for this context).