Otto the Great established the first great kingdom after the fall of the roman empire
<span>Plessy v. Ferguson, 163 US 537 (1896) was a landmark constitutional law case of the US Supreme Court decided in 1896. It upheld state racial segregation laws for public facilities under the doctrine of "separate but equal".</span>
Answer would be Mao Zedong
The history of the Greek alphabet starts with the adoption of Phoenician letter forms. Hope it's right :)