The document outlines the historical patterns and policies of immigration in various European countries, highlighting shifts from liberal to restrictive policies since the 1950s. It details the changing demographics of immigrants, pointing out significant flows from regions such as Southern Europe, Turkey, and North Africa, while analyzing the implications of these migrations on social dynamics and policy reforms. Additionally, it discusses the challenges and changes in immigration status for countries like Italy, Spain, and Poland, alongside the impact of global inequalities and economic crises on migratory trends.