The Catholic St. Boniface Church is built after a previous building collapsed in 1829/31 shortly before its completion. Prior to this, the Catholics in Wiesbaden had only had a makeshift church in Marktstraße since 1801.

The Herzoglich Nassauische Landeskreditkasse, the later Nassauische Landesbank and today's Nassauische Sparkasse, commences business operations on April 1.

On March 10, the first scheduled train runs from Wiesbaden Taunusbahnhof to Kastel, and on April 13, the railroad line to Frankfurt is opened.

Construction of the city palace of the Dukes of Nassau.

Originally intended as a residence for Wilhelm von Nassau, the so-called Erbprinzenpalais is built. It is then used by the museum, the state library and public authorities. Today it is the seat of the Chamber of Industry and Commerce.

The oldest German historical society, the "Gesellschaft der Nassauischen Altertumskunde" (Society for Nassau Antiquity and Historical Research) is founded.

The need for a social hall is met by the construction of the Kursaal.

The Reformed and Catholics are granted freedom of worship. A Reformed church is consecrated on August 21, while the Catholics use a hall in the Schützenhof as a house of prayer until they have their own church in 1801.

The "new Herrengarten" in front of the Sonnenberger Tor, the predecessor of today's Kurpark, is laid out.

Gambling in taverns is licensed. In addition to various card games, roulette is also introduced in 1782. From May 31, 1810, the game is given a permanent place in the Kursaal.

A faience factory is built under state control, which lasts until 1795.

An acting troupe receives the first verifiable concession for guest performances during the spa period and performs plays in a stall in the Herrengarten. Later, a hall in the Schützenhof serves as a theater.

Seat of government of the Principality of Nassau-Usingen.

The oldest surviving residential building in Wiesbaden is built. It is located at today's Wagemannstraße 5.

With the completion of the orphanage, Wiesbaden had a second important social welfare facility in addition to the hospital.

Prince Georg August Samuel has the so-called "Herrengarten" laid out on today's Friedrichstraße, Wiesbaden's first spa park.

The Old Town Hall is built; today it is the oldest building in Wiesbaden's city center.

View of the city by Wilhelm Dilich - the oldest pictorial representation of Wiesbaden.