original: lenzburg transformed into the economic centre of the region in the 19th century .
simplifications: lenzburg transformed into the economic center of the region in the 19th century . lenzburg transformed into the economic centre of the region . lenzburg transformed into the economic centre of the region in the 19th century . lenzburg altered into the economic centre of the region in the 19th century . lenzburg became the economic centre of the region in the 1800 's . lenzburg became the economic centre of the area in the 19th century . lenzburg transformed into the economic centre of the area in the 19th century . lenzburg became the economic center of the region in the 19th century .