Caviar sturgeon from the Sea of Azov began reaching the tables of aristocratic and noble Byzantine Greeks in the 10th century, after the commencement of large-scale trading between the Byzantine Empire and Kievan Rus'. The main types of caviar are Beluga, Sterlet, Kaluga hybrid, American osetra, Ossetra, Siberian sturgeon and Sevruga. The rarest and costliest is from beluga sturgeon that swim in the Caspian Sea, which is bordered by Iran, Kazakhstan, Russia, Turkmenistan, and Azerbaijan. Wild caviar production was suspended in Russia between 2008 and 2011 to allow wild stocks to replenish. Azerbaijan and Iran also allow the fishing of sturgeon
Brain types from Jung/Myers) which he believes is more precise: EA, EI, CA, and CI. EA, or 'Empirical-Animate' types (FEAL, FEAR, BEAL, BEAR), are said to excel in the region of the brain responsible for gross motor skills. EI, or 'Empirical-Inanimate' types (FEIL, FEIR, BEIL, BEIR) are thought to possess the best fine motor skills of the four groups. CA, or 'Conceptual-Animate' types (FCAL, FCAR, BCAL, BCAR), excel in the auditory cortex, which is responsible for controlling the mouth and various hearing/language skills. CI, or 'Conceptual-Inanimate' types (FCIL, FCIR, BCIL, BCIR), are believed to excel in the cerebral cortex, where abstract levels