While not native, svk got pretty popular already in 2005, at a time when git was not used much outside LKML. Github wouldn't be released for a couple more years

While not native, svk got pretty popular already in 2005, at a time when git was not used much outside LKML. Github wouldn't be released for a couple more years, which had a huge part in git dominance. Bazaar, darcs, Mercurial were all somewhat popular, but a pretty common question was what the killer feature really was that svn couldn't do.