Measured an 1890s map against modern borders and the Caspian Sea is way different
I was looking at an old Russian Empire map from 1893 and the Caspian Sea was massive compared to what it looks like now. Back then it stretched further north and east, covering areas that are dry land today. Over the last 130 years the water level dropped something like 20 feet total, but most of that happened after 1970 when they started damming the Volga river. The Volga provides like 80% of the inflow, so when they built all those reservoirs for irrigation, the sea just started shrinking. You can see it real clear if you overlay the old coastline on a satellite image. Has anyone else noticed how much lake boundaries have changed on vintage maps?