Was the Caspian Sea fresh water 7000 years ago?

Around 7,000 years ago, the Caspian Sea was not a freshwater body but rather a saline body of water. It has undergone significant changes in salinity and volume over millennia due to various geological and climatic factors. While it was connected to other bodies of water in the past, its current salinity levels are primarily due to evaporation and limited inflow from rivers. Thus, it has always had some level of salinity rather than being entirely fresh water.