Original sentence: A separate Ukrainian identity was formed with the rise of the Zaporozhian Cossacks and the Liberation wars of 1648.After the absorption of Ukraine by Tsardom of Muscovy after the Treaty of Pereyaslav and eventual incorporation of Left-Bank Ukraine into the Russian Empire, attempts were made to incorporate Ukrainians into the Russian nation.However, in the late 19th and 20th centuries the Ukrainian national sentiment prevailed in all territories populated by Ukrainians.Muscovite Russia used the term Little Russia to refer to the Cossack Hetmanate of Left-bank Ukraine, when it fell under Russian rule.Russians and Ukrainians are both Eastern Slavic peoples (as well as Belorussians) and share a common or close ancestry.Separated by different powers after the Mongol invasion of Kievan Rus in 13th century, different ethnic identities began to develop as a result
Edited sentence: After their alliance with Tsardom of Russia after the Treaty of Pereyaslav and eventual incorporation of Left-Bank Ukraine into the Russian Empire, attempts were made to incorporate Ukrainians into the Russian nation.Although the term Ruthenian continued to be used to refer to all three branches of Eastern Slavic peoples by the end of the 19th century, with the rise of the Zaporozhian Cossacks and the Liberation wars of 1648, a separate identity was formed.However, in the late 19th and 20th centuries the Ukrainian national sentiment grew in all territories populated by Ukrainians.Muscovite Russia used the term Little Russia to refer to the Cossack Hetmanate of Left-bank Ukraine, when it fell under Russian protection.Physically separated by different powers after the Mongol invasion of Kievan Rus in 13th century, different identities began to develop as a result.Russians and Ukrainians are both Eastern Slavic peoples (as well as Belorussians) and share a common ancestry