British English uses organise, while American prefers to organize. Both are correct depending on the region, but using one consistently is important. The reason for this goes back to the 1800s.

British English and American English are two widely spoken languages, with several variations in vocabulary, grammar, ...

There are many differences between British and American punctuation, spelling, and grammar. Neither version is more correct than the other; which version you should use just depends on who your ...

Verbs and verb forms in American and British English grammar: You are right, Anwar, there are not very many differences in grammar.Rather more when it comes to vocabulary and idiom.

Style Grammar Geekery: Americans used to just ‘disappear.’ Now they ‘go missing,’ and British English is to blame.

When British speakers borrow American habits, they are sometimes unwittingly readopting an older version of their language. Take the past participle of get , which in Britain is got and in America ...