Paraná is one of the Brazilian states that shows the most signs of recent European colonization. Most of the population are descendants of European settlers, and is one of the most ethnically diverse. Waves of European immigrants started arriving after 1850, mainly Germans, Italians, Poles and Ukrainians. The development of the state is closely linked to the arrival of the immigrants. Nowadays, migrants from other Brazilian states (especially from the São Paulo, Santa Catarina, Rio Grande do Sul and the Northeast Region) come to Paraná in search of a better life.