Group of words that has the grammatical function of a noun there will also be a noun as the dominant word in the phrase. That old red coat in the cupboard under the stairs has been stolen. The words before has make a noun phrase. Coat is the dominant noun; all the other words refer to it. A noun clause differs in that it contains a main verb.
The number of stripes changed frequently until around 1800. Red, white, and blue became the colours of liberty and an inspiration for other revolutionary flags around the world. Effective date: 19 February 1937.