Complex sentence: However, when the Alexandria part of the council area separated and formed their own municipality in August 1868, the council met in a room in Wellington Street, Waterloo, until they commissioned the new Town Hall in 1880.
Split into simpler sentences: However, when the Alexandria part of the council area separated and formed their own municipality in August 1868. From August 1868, Aldermen met in a room in Wellington Street, Waterloo, until they commissioned the new Town Hall in 1880.