Franklin Mint – History of the US – The Stars & Stripes – 1777 – 45mm – Proof Bronze Medal. Jan. 3 – Washington routs British at Princeton; March 12 – Congress reconvenes in Philadelphia; June 14 – Stars and Stripes adopted as national flag; Sept. 27 – British take Philadelphia; Oct. 4 – Battle of Germantown; Oct. 7 – Americans turn the tide at Saratoga; Nov. 5 – Articles of Confederation adopted by Congress.