The Flags That Changed Latin America (Las Banderas que Cambiaron América Latina)

Some of the most interesting and curious flags in the world are those in Latin America; after all, aren't some, like, almost identical to each other? And why would that be? Besides, what's with Paraguay having a two-sided flag (the ONLY one in the world to have this characteristic)? Or Brazil having "Ordem e Progresso" stamped across the center of its flag? And why do Uruguay and Argentina both have tributes to the Sun? Well, all of these mysteries, the history of these flags, and why the...