Complex sentence: The Edinburgh Ladies'Emancipation Society was a later addition to societies formed in 1833; on October 7 1833 a group of activists formed the Edinburgh Emancipation Society, the Glasgow Emancipation Society and the Glasgow Ladies's Emancipation Society.
Split into simpler sentences: The Edinburgh Ladies Emancipation Society was a later addition to the societies formed in 1833. On October 7 1833 a group of activists had formed the Edinburgh Emancipation Society.