Which year was the union jack created?

The Union Jack, as it is known today, was created in 1801 with the unification of Great Britain and Ireland. It combines elements from the flags of England, Scotland, and Ireland. The design incorporates the red cross of St George, the white saltire of St Andrew, and the red saltire of St Patrick. Prior to this, there were earlier versions of the flag, such as the Union Flag of 1606, which represented the union of England and Scotland.