38 BC – Founded as a military camp and first settlements

In 38 BC, the Romans founded the settlement of Mogontiacum to secure their strategic position on the Rhine. The city quickly developed into an important military base and trading center. The Roman infrastructure, such as roads and fortifications, laid the foundation for Mainz's later development and made the city an important location in the Roman province of Germania Superior.

4th Century – Expansion as a Roman Metropolis

In the 4th century, Mainz experienced a golden age as a Roman metropolis. Magnificent buildings, thermal baths, and public buildings were built. Mainz was an important center for trade, administration, and religion. The city was also the seat of a bishop, which underscored its religious significance. Roman artifacts and ruins still characterize the cityscape today and bear witness to this glorious era.

5th to 8th centuries – Transition and Early Middle Ages

After the fall of the Roman Empire, Mainz was conquered by the Franks in the 5th century. The city became an important center of the Frankish Empire and acquired a Christian character. In the 8th century, Mainz became a bishopric, which cemented the city's importance in the religious and political life of the Early Middle Ages. The founding of the first monasteries contributed to its cultural development.

10th to 13th centuries – Golden Age in the Middle Ages

During the High Middle Ages, Mainz experienced economic and cultural prosperity. The city became a member of the Hanseatic League and profited from trade along the Rhine. Construction of Mainz Cathedral began in the 10th century and was completed in the 13th century. Mainz became an important religious center with a vibrant university and numerous monasteries. The city was also known for its markets and craft businesses.

15th to 17th Centuries – Renaissance and Conflict

During the late Middle Ages and the Renaissance, Mainz experienced cultural renewal, but also conflict.
The Reformation led to tensions between Catholics and Protestants. In the 16th century, the city was severely affected by the Thirty Years' War, which led to destruction and population decline. Nevertheless, Mainz remained an important religious and cultural center.

18th Century – Baroque Splendor and Enlightenment

In the 18th century, Mainz was redesigned in the Baroque style. The town hall and other buildings received magnificent facades. The city became a center of the Enlightenment, with a growing number of schools and cultural institutions. The University of Mainz was founded in 1477 and experienced a golden age in the 18th century. The city was also a center of science and art.

19th Century – Napoleonic Era and Industrialization

During the Napoleonic Wars, Mainz became French in 1798 and became part of the Département du Mont-Tonnerre. French rule brought reforms to the legal system and administration. Industrialization began in the 19th century, bringing with it the expansion of railway lines and factories. Mainz developed into an important transportation hub and industrial center.

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