Assertion: unofficial national flag | /r/Synonym | the continental colours
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text: After the American Revolution began, the first, unofficial national flag—known as the Continental Colours (or, sometimes, as the Grand Union Flag, the Cambridge Flag, the Somerville Flag, or the Union Flag)—was hoisted on a towering 76-foot (23-metre) liberty pole at Prospect Hill in Charlestown (now in Somerville), Massachusetts, on January 1, 1776; it was raised at the behest of Gen. George Washington, whose headquarters were nearby.