I understand that English speakers have dictionaries, manuals of style, and grammar books at their disposal to know how to write correctly, but is there the most basic book of rules on which all British or American spellings are based?
I have seen the list of most notable proposed reforms, but they all look like mere recommendations:
Some of which were accepted by people, and some not. And I don't really understand why, for example, Americans suddenly changed their way of writing 'centre' or 'humour', just because Webster recommended to do so more simply.
For example, in Belarus during the previous century we have had three reforms of Belarusian orthography, each enforced by a government act accompanied by a guidebook with the basic outline of new rules and a set of various dictionaries. After a short transitional period all schools, newspapers, magazines, etc. had to comply with the new rules. As I know, Germans reformed their orthography twice, in 1901 and 1996, through the international conference of linguists, and implemented it in the same way. Russians did the same in 1918 and 1956. But what aboutEnglish?
And if today some simplification like https://en.wikipedia.org/wiki/Cut_Spelling or https://en.wikipedia.org/wiki/Simplified_Spelling_Board#Handbook_of_Simplified_Spelling were adopted and agreed to by all English-speaking nations, how would they make their citizens use this new spelling?