Read and learn about history. Pick out a good one.
https://en.wikipedia.org/wiki/March_17
1960 – U.S. President Dwight D. Eisenhower signs the National Security Council directive on the anti-Cuban covert action program that will ultimately lead to the Bay of Pigs Invasion.
1966 – Off the coast of Spain in the Mediterranean, the DSV Alvin submarine finds a missing American hydrogen bomb.
https://en.wikipedia.org/wiki/1966_Palomares_B-52_crash
The 1966 Palomares B-52 crash, or the Palomares incident, occurred on 17 January 1966, when a B-52G bomber of the United States Air Force's Strategic Air Command collided with a KC-135 tanker during mid-air refueling at 31,000 feet (9,450 m) over the Mediterranean Sea, off the coast of Spain. The KC-135 was completely destroyed when its fuel load ignited, killing all four crew members. The B-52G broke apart, killing three of the seven crew members aboard.[1]
Of the four Mk28-type hydrogen bombs the B-52G carried,[2] three were found on land near the small fishing village of Palomares in the municipality of Cuevas del Almanzora, Almería, Spain. The non-nuclear explosives in two of the weapons detonated upon impact with the ground, resulting in the contamination of a 0.77-square-mile (2 km2) area by plutonium. The fourth, which fell into the Mediterranean Sea, was recovered intact after a 2 1⁄2-month-long search.[3]