What is a dialect and how did they form in the United States and the U. K. and what made British English different from American English?

Explanation:

Dialect definition: a particular form of a language which is peculiar to a specific region or social group.

How did they form in the U.S.?:  Influenced by immigrants and British Colonizers.

What made British English different from American English?:

The American and British dictionaries are very different, because they were compiled by two very different authors with two very different perspectives on language.

Hope this helps. :)

si fuera 2 en colombia, entonces sería 10 pm en rusia