1986 - Common Ground Sign Dance Theatre established Common Ground Sign Dance Theatre established by a team of Christopher De Graal, Rebecca Lublinsky and Isolte De Graal.In 1986 Common Ground pioneered a style of dance performance which integrates Sign Language into choreography, creating a new art form.The work of Common Ground is original and organic, strongly rooted in Deaf culture yet fully accessible to those without any knowledge of Sign Language. Manage Cookie Preferences