Is 五四運動 in 1920s got to do
with Sun yetsun?
huh , at least I learn something sensible and facts from you
about the names for places.
Helicopter not easy to get along. 
No it's the 1st Cultural Revolution that abolish the classic
Confucius that segregate the officials and scholars from the
commoners. 白话 (present Mandarin) was introduced to make
commoners literate. Unfortunately, in creating a simplified
language much essence of Chinese literature and tradition is lost.
Couple with the later communism, the present language is a complete
altered language as to what is classical Chinese. I learnt the
classic Chinese which is the base root for many of the dialects
although for a short stint of 2 years.
