Passage: During the two centuries of their rule, the Indo-Greek kings combined the Greek and Indian languages and symbols, as seen on their coins, and blended Greek and Indian ideas, as seen in the archaeological remains. The diffusion of Indo-Greek culture had consequences which are still felt today, particularly through the influence of Greco-Buddhist art. The ethnicity of the Indo-Greek may also have been hybrid to some degree. Euthydemus I was, according to Polybius, a Magnesian Greek. His son, Demetrius I, founder of the Indo-Greek kingdom, was therefore of Greek ethnicity at least by his father. A marriage treaty was arranged for the same Demetrius with a daughter of the Seleucid ruler Antiochus III (who had some Persian descent). The ethnicity of later Indo-Greek rulers is sometimes less clear. For example, Artemidoros (80 BC) may have been of Indo-Scythian ascendency, although this is now disputed.Following the death of Menander,  most of his empire splintered and Indo-Greek influence was considerably reduced. Many new kingdoms and republics east of the Ravi River began to mint new coinage depicting military victories.  The most prominent entities to form were the Yaudheya Republic,  Arjunayanas, and the Audumbaras. The Yaudheyas and Arjunayanas both are said to have won "victory by the sword". The Datta dynasty and Mitra dynasty soon followed in Mathura. The Indo-Greeks ultimately disappeared as a political entity around 10 AD following the invasions of the Indo-Scythians, although pockets of Greek populations probably remained for several centuries longer under the subsequent rule of the Indo-Parthians and Kushans.

Question: When did the Indo-Greeks cease to exist as a political group?
10 AD