An American Ballroom Companion presents this social dance demonstration from the Library of Congress. Watch this demonstration traditional dance video on the Ragtime Dance: Argentine Tango. Not for beginners - this is not an instructional, step by step video. It is an authentic, professional demonstration of the Ragtime Dance: Argentine Tango. Argentine Tango is a dance which originated in Argentina and then move to Uruguay. In the US it is known as Ballroom Tango.