No one. The UK was formed by a union of seperate countries. Of those, only parts of Ireland have split from it, or rather the whole territory was split, and part came back.
Protista
Israel was split into two kingdoms, if that's what you mean.
plant and fungi
England was split into different kingdoms
because the five kingdoms have been split up in to 5 very vague categories, and are able to explain all of the following five kingdoms,
The Period of Disunion.
Carl Woese split up the prokaryotes into two kingdoms, creating a total of six kingdoms.
In about 926BC, Israel split into two kingdoms: Israel (in the north) and Judah (in the south)
It is one kingdom, which consists of 4 countries. 3 of them are on the island of Britain. They are England, Scotland and Wales. Historically they have a close connection. Ireland was once part of the United Kingdom, but in 1922 Northern Ireland came into existence and stayed part of the United Kingdom, while the rest of Ireland became independent.
His generals split it up amongst themselves, establishing their own kingdoms (today we call them the Hellenistic kingdoms).
why did Israel split into two different kingdoms
His generals split up the empire and formed their own kingdoms (today we call them the Hellenistic Kingdoms).