Heh. I always assumed that the name of the currency, real, has the meaning "royal". Instead, it's literally the same as the English word. What an interesting story. Have any other governments suffering from high inflation tried this? Instead of calling it a fictional unit, they could also just use an existing currency like the euro for the transitional period, then switch to a new national currency that has an initia…
I believe Germany did in the late 1930s but for other reasons the Reichmark didn't quite end up as the world currency they wee hoping for. You can decide to peg your currency against a more stable one eg west Africa and the French Franc - but unless the owners of the hard currency have some political reason to support your then you have to persuade the world's traders that you flobble-bead is actually worth a Euro.
There was no hyperinflation in the 30s. The early thirties saw depression and deflation. This Weltwirtschaftskrise lasted longer in the US than in Germany and is known as the Great Depression, there. The crisis contributed to the rise of Nazism in Germany, though.