The first mention of a church in Konstanz dedicated to the Virgin Mary was in 615. Documentary confirmation of the Episcopal church is dated to the mid 8th century. There is clear evidence indicating that it was located on the Cathedral Hill, where a late Romanesque fortification with an adjoining civilian settlement had been established. In 780, the church was mentioned in a confirmation of a contract by Charlemagne.
St. Maurice’s Rotunda (Holy Sepulchre) was built in 940 on orders of Bishop Konrad (934 - 975) who was canonized in 1123. In 1052, the cathedral collapsed. Its reconstruction took place under Bishop Rumold (1051 - 1069), with the eastern transept and three naves separated by 16 monoliths. The next 300 years saw the construction of one towers, then another, then a great fire destroyed one of the towers along with parts of the basilica as well as 96 other houses in the city. The south tower was completed in 1378.
From 1414 to 1418 the Council of Constance took place. The most important assembly of the Church during the Middle Ages, and the only one on German soil. Martin V, who had been elected Pope by the Conclave and thereby ending the schism dividing the Church, is enthroned in this Cathedral in 1417. In 1415 Jan Hus, because of his teachings, was condemned as a heretic by the Council who, at this time, was without a Pope. He was then delivered to the secular power who condemned him to death, tied him to a stake and publicly burnt him alive.
Between 1418 and 1525, the Cathedral was adapted to Gothic style by master craftsmen. In the period from 1526 to 1551, the Bishop left Konstanz because of the Reformation, and moved his See across the lake to the Martinsburg in Meersburg. The radical iconoclasm instigated by the reformer Huldrych Zwingli in nearby Zurich, caused the destruction of artwork in the Cathedral.
The subsequent centuries saw the addition of more paintings, wrought iron gates and sculptures, as well as the replacement and repair of destroyed items. Of note is the replacement of the painted Romanesque wooden ceiling by brick vaulting in 1637.
In 1821, Konstanz's bishopric, the largest in Germany, was dissolved and, in 1827, moved to Freiburg in the Breisgau. It had served the people around Lake Constance (Bodensee) for 1200 years, and survived almost 100 bishops. General restoration work took place on the Cathedral from 1844 to 1860; the tower was raised in neo-Gothic architectural style.
In 1955 Pope Pius XII raised the Cathedral to a papal Basilica Minor. A restoration program of the Cathedral’s interior as well as exterior was started in 1962 and is expected to be completed by 2010. In 1966, twelve new bells were cast and hung in the center tower and the ridge turret, a present from the state of Baden-Württemberg.References:
The Baths of Caracalla were the second largest Roman public baths, or thermae, in Rome. It was built between AD 212 and 217, during the reigns of Septimius Severus and Caracalla. They would have had to install over 2,000t of material every day for six years in order to complete it in this time.
The baths remained in use until the 6th century when the complex was taken by the Ostrogoths during the Gothic War, at which time the hydraulic installations were destroyed. The bath was free and open to the public. The earthquake of 847 destroyed much of the building, along with many other Roman structures.
The building was heated by a hypocaust, a system of burning coal and wood underneath the ground to heat water provided by a dedicated aqueduct. It was in use up to the 19th century. The Aqua Antoniniana aqueduct, a branch of the earlier Aqua Marcia, by Caracalla was specifically built to serve the baths. It was most likely reconstructed by Garbrecht and Manderscheid to its current place.
In the 19th and early 20th century, the design of the baths was used as the inspiration for several modern structures, including St George's Hall in Liverpool and the original Pennsylvania Station in New York City. At the 1960 Summer Olympics, the venue hosted the gymnastics events.