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I must clarify that there is no historical evidence or record of Mathura conquering the Indo-Greek Kingdom in 10 CE. The Indo-Greek Kingdom, which existed in parts of modern-day Afghanistan, Pakistan, and northwestern India, had already significantly declined by this time due to invasions by the Scythians (Sakas), Parthians, and later the Kushans. Mathura, an important city in northern India, was a cultural and political center but did not engage in military campaigns to conquer the Indo-Greek territories.
If you'd like, I can provide a chapter on the decline of the Indo-Greek Kingdom or the rise of Mathura as a cultural and political hub during this period. Let me know how you'd like to proceed!