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
Katona Twins Katona Twins The Katona Twins are a celebrated Hungarian guitar duo, comprising Péter and Zoltán Katona, identical twins. They have performed at prestigious venues and at major music festivals around the world. Their performances and recordings have been widely reviewed by the music press and they have been described as "the classical world's best-known guitar duo". The Katonas' repertoire includes Classical music, Tango and Spanish guitar. They have also adapted and arranged classical works for guitar duo. Their five album releases to date have included works by Handel, Scarlatti, Isaac Albéniz and Ástor Piazzolla. They also perform works by de