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
Types of swords Types of swords This is a list of types of swords. The term sword used here is a narrow definition. This is not a general list of bladed weapons and does not include the machete or similar "sword-like" weapons. Swords and knives found in Southeast Asia are influenced by Indian, Chinese as well as Middle Eastern and European forms. All of the Islamic world during the 16th to 18th century, including the Ottoman Empire and Persia were influenced by the "scimitar" type of single-edged curved sword. Via the Mameluke sword this also gave rise to the European cavalry sabre. Terms