- The Kingdom of France (French: Royaume de France), was a medieval and early modern monarchy in Western Europe, the predecessor of the modern French Republic. It was one of the most powerful states in Europe, a great power since the Late Middle Ages and the Hundred Years’ War. It was also an early colonial power, with significant possessions in North America.
- Oh-My-God particle (Wikipedia)
The Oh-My-God particle was an ultra-high-energy cosmic ray detected on 15 October 1991 by the Fly’s Eye camera in Dugway Proving Ground, Utah, United States. As of 2023, it is the highest-energy cosmic ray ever observed. Its energy was estimated as (3.2±0.9)×1020 eV (320 exa-eV). The particle’s energy was unexpected and called into question prevailing theories about the origin and propagation of cosmic rays.