I believe the answer is: Similar systems developed in China and Japan
The feudalism system was brought to China and Japan after traders from China and Japan come to Europe to sell goods , learn about the feudalism system during the visit, and brought it back to the country, and used in these countries for about 7 centuries.
<u>i KNEW IT BUT I FORGOT</u>
<u>.</u>
<span>i think is this one -adoption of a social caste system </span>
“Society was liberalized, and Gorbachev sought détente with the USA so as to be able to transfer funding from defense to civil society. He declared that he would not support Communist regimes in other countries if their peoples were opposed to them. He thus started a chain reaction which led to the fall of communism in Europe.”
<span>fight to defend the polis</span>