Interesting stuff about the post-colonial culture. Personally, when I think of Argentina I tend to think of Los Desaparasidos (the Disappeared), i.e. the folks kidnapped, tortured and killed by the military junta in the late-1970s to mid-1980s. Also, it was a really popular spot for German refugees post-WWII (including some notorious ex-Nazis), so there are a lot of folks with German last names. It's not a history book, it's actually magical realism, but I heartily recommend reading Imagining Argentina for a sense of that time period.