How did the migration of people change government in western Europe?

1. Invasion and conquest: The Germanic peoples who migrated into western Europe often conquered the local Roman or Celtic populations and established new kingdoms. For example, the Visigoths conquered Spain and Portugal, the Franks conquered Gaul (modern-day France), and the Anglo-Saxons conquered Britain. These conquests led to the establishment of new political systems, such as the Visigothic Kingdom, the Frankish Kingdom, and the Kingdom of England.

2. Assimilation: In some cases, the Germanic peoples who migrated into western Europe gradually assimilated into the local population. This was particularly true in areas where the Germanic peoples were a minority, such as in Italy and Gaul. In these cases, the Germanic peoples adopted the language, customs, and laws of the local population.

3. Acculturation: In some cases, the Germanic peoples who migrated into western Europe influenced the local culture and institutions. This was particularly true in areas where the Germanic peoples were a majority, such as in Britain and Scandinavia. In these cases, the Germanic peoples introduced their own language, customs, and laws, which had a lasting impact on the local culture.

4. Federalism: In some cases, the migration of people led to the formation of federal states. This was particularly true in areas where there was a mix of different ethnic groups, such as in Switzerland and the Netherlands. In these cases, the different ethnic groups agreed to live together under a common government, while still maintaining their own distinct identities.

5. Decentralization: In some cases, the migration of people led to the decentralization of government. This was particularly true in areas where the central government was weak or nonexistent, such as in the Holy Roman Empire. In these cases, local governments had a great deal of autonomy, and the central government had little control over them.