On Vacation Guide Book Leipzig | Page 28

3 . T H E S T . T H O M A S C H I R C H E THOMASKIRCHHOF 18 The St . Thoma ' s Chirche dates back to the 12th century . Here the University of Leipzig was founded in 1409 . Between 1492 and 1496 it received the form of a late Gothic hall church . Here , in 1539 , Martin Luther preached the introduction of the Reformation and here the St . Thomas Choir sang for almost 800 years . In the sanctuary and in the crossing of today ' s Thomaskirche , excavations revealed the foundations of a church from the period around 1160 - the time when Margrave Otto of the kingdom of Meissen granted the city and the castle suburb of Libzi the city right . The Romanesque sanctuary of this church was redesigned in 1355 gothic . In 1482 , the Romanesque nave was abandoned and the building of a late - Gothic hall church , which remains today , was erected . Except for the tower , which was given its final appearance in 1702 , nothing has changed since then in the architecture of St . Thomas ' s Church . However , the renovation of the years 1884 - 89 brought with it a striking intervention : The entire equipment of the Baroque period - especially from the time in which Johann Sebastian Bach at the Thomaskirche ( 1723 - 1750 ) worked - was removed . Since then , the interior of the church has been in neo - Gothic style . The Mendelssohn portal attached to the western front also dates from this period . After the unification of the two German states in 1990 , the Thomaskirche was completely restored and repaired . The works were largely completed on the 250th anniversary of the death of Johann Sebastian Bach on July 28 , 2000 . The St . Thomas Church also received her new Bach organ . This is how the Thomaskirche presents itself today : it is 76 m long , the length of the ship is 50 m , its width 25 m and its height 18 m . The roof has an unusually steep inclination angle of 63 degrees . Inside it has seven levels ( ridge height 45 m ). The tower is 68 m high .