20 21 the Augsburg Confession which paved the way for the Reformation in Celle Also in 1530 the town was extended for the first time Guelphic Duke Otto the Strict 1266 1330 At Whitsun in 1292 he granted Celle the town privilege and encouraged the resettlement of the citizens of Old Celle to New Celle In 1301 he granted Celle in the Low German language a new town charter 993 First documented as Kellu today Altencelle in a boundary document issued by order of Emperor Otto III 1248 Celle today Altencelle is referred to as a town for the first time 1292 The Guelphic duke Otto the Strict of Brunswick Luneburg relocates the town to its present site 1378 Celle becomes the residence of the dukes of Luneburg 1527 1530 The Reformation is adopted in the duchy by Duke Ernest the Confessor Celle is extended 1570 1579 A Renaissance gable is added to the town hall 1670 1680 The ducal castle is converted into a baroque palace and a theatre is installed 1674 1705 Death of the last duke of Celle The town ceases to be a ducal residence 1710 A prison workhouse and mental asylum is established today a penal institution 1711 Celle becomes the seat of the Supreme Court of Appeals the highest court in the Electorate of Hanover today the Regional Court of Appeals 1735 The Hanoverian Stud Farm is established in Celle around 1740 Celle s Jewish community builds a synagogue in the suburb of Blumlage 1772 1775 The Danish queen Caroline Mathilde is exiled to the Celle Palace following the famous Struensee Affair 1845 The railway line from Lehrte to Celle is opened by King Ernest Augustus of Hanover and Duke William of Brunswick 1866 Following the defeat at the battle of Langensalza the Kingdom of Hanover is annexed by the Prussians Celle becomes a Prussian provincial town 1869 The four suburbs of Blumlage Hehlentor Neuen häusen and Neustadt are incorporated into the town of Celle 1872 A large infantry barracks next to the former ducal game park is completed It now houses the New Town Hall 1885 Celle becomes an urban district town 1909 The municipal hall Union is opened nowadays a congress centre Congress Union 1945 On 12 April the town surrenders peacefully to the Allied forces 1954 The State Social Welfare Tribunal is established in Celle 1957 The Mobil Oil company now Exxon erects Celle s first high rise building 1973 Nine surrounding villages are incorporated into Celle Celle loses its status as an urban district town 1977 Celle becomes a large independent town A brief historical overview