Mamporia was first founded in 2134. 16 years after the Nuclear Apocalypse. It was for a time, the only country on the map. So it expanded as far into Poland and Romania in its first 4 years of its existence. It was involved in a huge war where it was left only with its native Iberian land. As the ages passed, it rose and fell over and over again. At one point, it controlled the whole known world. And at others it was wiped off the map entirely, such as with the Spore Zombie Disease and Baramuth's great rise. Mamporia definitively has the largest and most diverse culture in the Jarjarian Universe.