I don't believe that these are merely popular stories. If you at least partially trust the content in the Draft History of Qing:
The following translations given are my own; caution: may be heavily paraphrased.
On the contrary. Portugal started building Macau International Airport (very expensive) after the handover of Macau decision was already settled between Portugal and China (1987).
Portugal offered to withdraw ...
Many of the following are anachonistic; I wanted to test to see if there was information on Asian cosmetics in history. I think the answer is yes; I selected the following from pages of results.
The Chinese stain their fingernails with gum arabic, gelatin, beeswax, and egg. The colors are used as a representation of social class: Chou dynasty ...
Ironically enough, this is likely a case of Chinese whispers.
There is a relatively established crackpot "theory" that the Chinese discovered America in the 5th century or so, and called the new land "Fusang." This claim has been around for a while, and also features in the Wikipedia article linked in the question:
A group of Chinese Buddhist ...
There is a book called They All Discovered America, by Charles Michael Boland, 1961, which listed and discussed all the claims of pre Columbian discoveries of America that the author could find.
Each chapter should have a discussion of the evidence for the claim in that chapter. So that book could be a fairly good guide (allowing for Boland's biases) to the ...
There are two potential points of evidence that I am aware of.
1) A Mr. Moriarity and Mr. Pearson first published a paper detailing the findings of circular stone anchors similar to a type of anchor found in china that were found off the coast of California,
2) a map was published by Gavin Menzies that seemed to be a Chinese map from the 1400's showing ...
According to this Wikipedia list: https://en.wikipedia.org/wiki/List_of_largest_empires1
The Xia dynasty was at its largest about 1800 BC with an estimated area of about 450,000 square kilometers or 170,000 square miles.
The Shang dynasty was at its largest about 1122 BC with an estimated area of about 1,250,000 square kilometers or 480,000 square miles.