What did the 15 star 15 stripe flag inspired Francis Scott Key to do?

The 15-star, 15-stripe flag, also known as the Star-Spangled Banner, inspired Francis Scott Key to write the poem that would later become the national anthem of the United States. Observing the flag flying over Fort McHenry after a night of intense bombardment during the War of 1812, Key was moved by the sight of the flag still standing, symbolizing resilience and patriotism. His poem, originally titled "Defence of Fort M'Henry," captured this moment of inspiration and pride, ultimately leading to the anthem we know today.