Complex sentence: Didsbury was largely rural until the mid- 19th century, when it underwent development and urbanisation during the Industrial Revolution; the Royal Society for the Protection of Birds was formed in Didsbury in 1889.
Split into simpler sentences: Didsbury was largely rural until the mid- 19th century, when it underwent development and urbanisation during the Industrial Revolution. The Royal Society for the Protection of Birds was formed in Didsbury in 1889.