When did francis scott key write the poem that became the national anthem?
the morning after the battle of york, july 4, 1815
july 4, 1814
the night before the battle of fort mchenry, september 14, 1814
the morning after the battle of fort mchenry, september 14, 1814

September 14, 1814

On September 14, 1814, Francis Scott Key pens a poem which is later set to music and in 1931 becomes America's national anthem, “The Star-Spangled Banner.” The poem, originally titled “The Defence of Fort McHenry,” was written after Key witnessed the Maryland fort being bombarded by the British during the War of 1812.

Explanation:

operation overlord was the codename for the battle of normandy, the allied operation that launched the successful invasion of german-occupied western europe during world war ii. the operation was launched on 6 june 1944 with the normandy landings