Below are four maps spanning 1570 to 1754 β roughly 184 years β each showing the region European cartographers labelled "Tartaria." Each one is a genuine, dated, publicly archived document. Look at what changes between them: the coastline, the internal divisions, the level of detail. Look at what stays constant: the name itself, and the fact that nobody ever drew a capital, a flag, or a border marker for a unified state.
Ask your own questions as you go. Does the region get more precise over time, or does it just move around randomly? Does the level of detail track with what you'd expect European knowledge of Central Asia to look like in each period? Does anything here look like a government mapping its own territory, or does it look like outsiders filling in a large blank space with the best information available to them?