False, it was the Government of Japan and not of China.
The Gentlemen's Agreement was an unofficial bond between the Empire of Japan and the United States. It was an attempt made by the then president of United States Theodore Roosevelt to soothe growing stresses between the two nations.
This agreement states that the United State would not force restrictions on the immigrants from Japan and that Japan would not permit further migration to the United States.
We would not be technologically advanced like we are today there would be disease still lots of death and famine and still be under the boot of a king