etj. For the various forms and uses of this or that variant see, inter alia, also Çabej SE II 6lss.; Demiraj 1999 175 ss. etj.</ref>. " "ethnic name or the national one of Albanians, despite the right Slavic term Albanci, now appears to be pronounced as Šiptari of Šipci with a connotation that is contemptuously negative, as it is used in the very beginning of the Serbs era at the time of the old Yugoslavia together and the form Šiftari and Arnauti which have the same pejorative connotations."}} The term "Albanoi" (Αλβανοί) is first encountered twice in the works of Byzantine historian Michael Attaliates, and the term "Arvanitai" (Αρβανίται) is used once by the same author. He referred to the "Albanoi" as having taken part in a revolt against the Byzantine Empire in 1043, and to the "Arbanitai" as subjects of the Duke of Dyrrachium (modern Durrës). These references have been disputed as to whether they refer to the people of Albania.. Historian E. Vranoussi believes that these "Albanoi" were Normans from Sicily. She also notes that the same term (as "Albani") in medieval Latin meant "foreigners". The reference to "Arvanitai" from Attaliates regarding the participation of Albanians in a rebellion around 1078 is undisputed. In later Byzantine usage, the terms "Arbanitai" and "Albanoi" with a range of variants were used interchangeably, while sometimes the same groups were also called by the classicising name Illyrians.N. Gregoras (ed. Bonn) V, 6; XI, 6. The first reference to the Albanian language dates to the latter 13th century (around 1285). The ethnonym Albanian has been hypothesized to be connected to and stem from the Albanoi,. an Illyrian tribe mentioned by Ptolemy with their centre at the city of Albanopolis. Linguists believe that the alb part in the root word originates from an Indo-European term for a type of mountainous topography, from which other words such as alps are derived. Through the root word alban and its rhotacized equivalents arban, albar, and arbar, the term in Albanian became rendered as Arbëneshë/Arbëreshë for the people and Arbënia/Arbëria for the country. The Albanian language was referred to as Arbnisht and Arbërisht. While the exonym Albania for the general region inhabited by the Albanians does have connotations to Classical Antiquity, the Albanian language employs a different ethnonym, with modern Albanians referring to themselves as Shqip(ë)tarë and to their country as Shqipëria. Two etymologies have been proposed for