Conjoined twins al'Abbas and Banu Ummaya ibn 'Abd Shams in the year 750 AH). The Muslim polymath Abū al-Rayhān al-Bīrūnī described conjoined twins in his book "Kitab-al-Saidana". The English twin sisters Mary and Eliza Chulkhurst, who were conjoined at the back (pygopagus), lived from 1100 to 1134 (or 1500 to 1534) and were perhaps the best-known early historical example of conjoined twins. Other early conjoined twins to attain notice were the "Scottish brothers", allegedly of the dicephalus type, essentially two heads sharing the same body (1460–1488, although the dates vary); the pygopagus Helen and Judith of Szőny, Hungary (1701–1723), who enjoyed a
Ragga Twins Ragga Twins The Ragga Twins, also known as RTC, are an English ragga and jungle duo from Hackney, composed of London UNITY sound system veteran MCs Deman Rocker and Flinty Badman (real names David and Trevor Destouche). They are regarded as pioneers of jungle. AllMusic called them "crucial cogs in the development of U.K. dance music." In 2008, Soul Jazz Records issued a compilation album of their early 1990s recordings entitled "Ragga Twins Step Out". David is the father of Essex-based grime MCs RD (Renae Destouche) and Mr X. The Ragga Twins originated as part of London's Unity sound system,