Who was Vladimir I ? and what did he accomplish?

He served as the first and founding head of government of Soviet Russia from 1917 to 1924 and of the Soviet Union from 1922 to 1924. Under his administration, Russia, and later the Soviet Union, became a one-party socialist state governed by the Soviet Communist Party.

Vladimir I, also known as Vladimir the Great or Vladimir Sviatoslavich the Great, ruled Kievan Rus' from 980 to 1015 and is famous for Christianizing this territory during his reign.

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answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest