evidence: Kazakhstan, landlocked country of Central Asia. It is bounded on the northwest and north by Russia, on the east by China, and on the south by Kyrgyzstan, Uzbekistan, the Aral Sea, and Turkmenistan; the Caspian Sea bounds Kazakhstan to the southwest. Kazakhstan is the largest country in Central Asia and the ninth largest in the world. Between its most distant points, Kazakhstan measures about 1,820 miles (2,930 kilometres) east to west and 960 miles north to south. While Kazakhstan was not considered by authorities in the former Soviet Union to be a part of Central Asia, it does have physical and cultural geographic characteristics similar to those of the other Central Asian countries. The capital is Astana (formerly Nur-Sultan, Aqmola, and Tselinograd), in the north-central part of the country. Kazakhstan, formerly a constituent (union) republic of the U.S.S.R., declared independence on December 16, 1991. [...] Kazakhstan’s east and southeast possess extensive watercourses: most of the country’s 7,000 streams form part of the inland drainage systems of the Aral and Caspian seas and Lakes Balkhash and Tengiz. The major exceptions are the great Irtysh, Ishim (Esil), and Tobol rivers, which run northwest from the highlands in the southeast and, crossing Russia, ultimately drain into Arctic waters. In the west the major stream, the Ural (Kazakh: Zhayyq) River, flows into the Caspian Sea. In the south the waters of the once-mighty Syr Darya have, since the late 1970s, scarcely reached the Aral Sea at all.