The Treaty of Tordesillas split new overseas territories between Spain and Portugal, mediated by the Pope to avoid conflict.

Ultraviolet B radiation converts skin precursors into vitamin D, essential for calcium metabolism and bone health.

The Sahara Desert in Africa is the largest hot desert, covering 9.2 million sq km, though Antarctica is the largest overall desert.

Seismology is the study of earthquakes and seismic waves, helping scientists understand Earth’s interior and predict seismic risks.

The Bastille’s fall in 1789 marked the start of the French Revolution, symbolizing the people’s fight against tyranny.

Japan uses the yen (JPY), introduced in 1871, and it remains one of the most traded currencies worldwide.

James Clerk Maxwell formulated the classical field equations that unify electricity, magnetism, and light as electromagnetic waves.

The 1054 Schism split Christianity into Roman Catholicism (West) and Eastern Orthodoxy (East). This is a well-documented historical or scientific.

The Louvre in Paris is the world’s largest art museum, housing the *Mona Lisa* and countless treasures of global civilization.

Khan Abdul Ghaffar Khan, a Pashtun independence activist, was called the “Frontier Gandhi” for his nonviolent resistance.