Final answer:
The positive outcomes of the War of 1812 for the United States include the inspiration for "The Star-Spangled Banner", the victory of Andrew Jackson at New Orleans, and the encouragement of American manufacturing, leading to economic independence from Britain.
Step-by-step explanation:
From the perspective of the United States, the positive outcomes of the War of 1812 include several aspects apart from the favorable settlement of most issues that caused the war.
Firstly, the war inspired the composition of "The Star-Spangled Banner", now the national anthem, penned by Francis Scott Key after witnessing the bombardment of Fort McHenry.
Secondly, the victory of Andrew Jackson at the Battle of New Orleans elevated his national stature and eventually helped launch his political career.
Thirdly, the war encouraged the growth of manufacturing within the United States, leading to a greater sense of economic independence from Britain.
This shift towards internal development opened the door to the market revolution, with significant advancements such as the development of interchangeable parts and the integrated mill system, which differed the Northern and Southern economic structures.