Is this understandable

hace 4 años

Hello!
I've written this for English native speakers who visit one of the museums in Ukraine. Is it completely natural and clear to you? What changes would you make to  make it more clear and understandable? Thank you!


"An interesting part of the exhibition is a 1716 detailed regional map by a German cartographer Johann Baptist Homann called “Ukraine or the Land of Cossacks…” The map depicts the ethnical territory of Ukrainian lands during the Cossack Hetmanate.
The founder of the Hetmanate (aka the Cossack state) was Bohdan Khmelnytsky who won the war against the Poles and in 1649 signed The Treaty of Zboriv with the Polish government after which the Cossack state came into existence. Khmelnytsky applied the democratic political system of the Zaporozhian Sich on volost (settled area).
From that moment the Starshyna council had the right to elect a Hetman, the head of the Cossack state. After Khmelnytsky’s death the power of a Hetman was limited because of The Pereyaslav Council in 1654 during which Bohdan Khmelnytsky together with some of his colonels
swore loyalty to the tsar of Moscow. Bohdan considered this alliance as a temporary one, but the Moscow’s government headed by Alexis of Russia step by step started to violate the agreements. Therefore, each new hetman of Ukraine had to sign new and new agreements with the Moscow government."