The Glass Town is a paracosm created and written as a shared fantasy world by Charlotte Brontë, Branwell Brontë, Emily Brontë and Anne Brontë, siblings of the Brontë family. It was initiated by Charlotte and her brother Branwell; Emily and Anne Brontë later participated in further developing the stories and geography of its world, although they also broke away to conceptualize Gondal, while Charlotte conceptualized Angria. The Glass Town writings began in December 1827, and as largely unfinished manuscripts, they constitute the juvenilia of the Brontë sisters.