Answer:
Calvin Coolidge
Explanation:
He was the 30th president before Herbert Hoover
It started 476 a.d thats the answer
Answer:
UNESCO
Explanation:
The United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Sites are places of importance to cultural or natural heritage as described in the UNESCO World Heritage Convention, established in 1972.
Led by Genghis Khan and his sons and grandsons, the Mongols briefly ruled most of modern-day Russia, China, Korea, southeast Asia, Persia, India, the Middle East and eastern Europe.
