Why is Britain called Great Britain?

Because the British mainland is located in the northwest of Europe, the British Isles are composed of the British Island, the Irish Island and the Isle of Man (including a series of surrounding islands).

In 500 BC, the Celts in Europe mastered advanced iron smelting technology, easily defeated other backward tribes and occupied the most livable place in Europe. The Celts scattered all over Europe live a primitive tribal life and have no national concept.

After the rise of the Romans in southern Europe, they constantly invaded the territory of the Celts and occupied their living space. Some Celts were forced to leave the European continent and cross the English Channel to the British Isles and Ireland.

Historical evolution:

After the unification of England, the Anglo-Saxons were called English, the northern Celts were called Scots, and the Celts in Ireland and Wales were called Irish and Welsh. In order to unify the British Isles, the English invaded Scotland in the north and Ireland in the west, and met with stubborn resistance from the local people. England finally became the suzerain of Ireland and Scotland by force and established the United Kingdom of Great Britain and Ireland.

England began to immigrate to Ireland in large numbers, suppressed the Irish in many policies, and even ignored the Irish life and death during the famine. Dissatisfied with the Irish, they persisted in the struggle for independence for centuries. In this case, English immigrants from Ireland slowly gathered in the northeast of Ireland, forming six counties in the northeast.

After World War II, Ireland became independent with the support of the United States and established the Republic of Ireland. Britain admitted it, but refused to hand over six counties in Northeast China. After Ireland's independence, Britain changed its name to the United Kingdom of Great Britain and Northern Ireland.