Ukrainians in Russia include all the family of hetman Ivan Mazepa, A. Vojnarovsky, and those in Mazepa's Cossack forces that returned to Russia. Some were imprisoned in exile for the rest of their lives such as hetmanPavlo Polubotok, Pavlo Holovaty, P. Hloba and Petro Kalnyshevsky. Beginning in the 19th century, there was a continuous migration from Belarus, Ukraine and Northern Russia to settle the distant areas of the Russian Empire. The promise of free fertile land was an important factor for many peasants who until 1861, lived under Serfdom. In the colonization of the new lands, a significant contribution was made by ethnic
Internet in Russia for commercial use which is recognized as the largest urban wireless network in the world. The Black Sea coast of Russia has become an important area for the fiber-optic networks, as it served as a backbone of communication during the Winter Olympic Games in 2014. On October 2010 mobile operator MegaFon has selected Huawei NE5000E routers to construct backbone nodes for a 40-Gbit/s IP/MPLS network in Russia' s largest cities, including Moscow and St. Petersburg, Huawei says. Meanwhile, Megafon also announced the opening of what it touts as Russia’s largest data center in Samara. In 2011 Rostelecom started implementation of