The Union Jack the flag of Great Britain

The Union Jack
This is the popular name given
to the flag of Great Britain.
Actually it is called the Union Flag and it is a mixture of several flags:

It all began in 1606 when Scotland was joined to England and Wales
The Scottish flag, St Andrew’s Cross,
+
the English Flag, St George’s Cross
Scotland
England
Wales

The English people got the Union Flag which is red, white and blue. King James the First (1566 – 1625) ordered that the Union Flag should be flown on the main mast of all British ships, except on ships of war. Here the flag was flown at the front of the ships, on what was called the bowsprit. The end of the bowsprit was called the Jack Star and so we get the name of Union Jack. A “jack”, by the way, is an old word for the sailor.

In 1801, when Ireland was joined to
the Union, as it was called,
the Irish Flag of St Patrick’s Cross
was added
Scotland
England
Wales
Ireland

BRITISH IMPIRE (to 1921)
The Union Jack is also on the flags of Australia
and New Zealand